KR100942994B1 - Disc apparatus - Google Patents

Abstract

A disk device having a cartridge holding mechanism that can be downsized and can reduce a damper load. The disk apparatus includes a spindle motor 91 for mounting and rotating a disk, a traverse base 82 for holding the spindle motor 91, a rubber damper 71 for elastically holding the traverse base 82, A mechanism chassis 60 holding the traverse base 82 through the rubber damper 71, a tray 20 on which the cartridge 1 containing the disc is mounted, and a tray 20 are loaded or unloaded to provide a cartridge ( A loading motor 61 for accessing or separating the disk of 1) from or near the spindle motor 91 is provided. The cartridge 1 is supported by the mechanism chassis 60 through the tray 20.

Description

Disk Device {DISC APPARATUS}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc device and a disc loading method such as an optical disc device which is applied to a player or recorder for recording, reproducing or recording / reproducing on a disc such as an optical disc.

In particular, the disks and the disks stored in the cartridge are mounted to hold the cartridges by trays which are loaded (loaded) or taken out (ejected) inside the disk apparatus, and the disks stored in the cartridges are held. It relates to a cartridge holding mechanism.

The present invention also relates to a loading method, a mechanism and an apparatus for carrying in (loading) or carrying out (ejecting) a tray inside a disk apparatus.

In addition, the disk or the disk containing the disk is mounted, and the opening after the loading of the tray which is loaded (loaded) into the disk device or taken out (ejected) to the outside, or the disk or slot-less slot-in method The locking mechanism of the door which shields the opening part after carrying in of a cartridge is related.

The present invention also relates to an autoloading mechanism of a tray for carrying (loading) or carrying out (ejecting) an optical disk housed in a cartridge into an optical disk apparatus.

The present invention also relates to a positioning mechanism of a cartridge when the tray is loaded (loaded) into the disk apparatus.                 

In particular, a cartridge holding mechanism is provided on a tray which mounts an optical disc and an optical disc housed in a cartridge, and which is loaded (ejected) or externally ejected (ejected) for ejection of the disk for positioning on the spindle motor inside the disk apparatus. It is about.

In the conventional optical disc apparatus for driving only a single optical disc, only a traverse base holding a spindle motor for rotating the disc and an optical head for recording and reproducing the disc is elastically supported by a damper.

However, in the optical disk apparatus for driving the optical disk into the cartridge, the traverse base and the loading mechanism of the cartridge are integrally formed so that the entire structure is elastically supported by the damper.

Hereinafter, the structure and operation of the optical disc apparatus for recording and reproducing the optical disc in the cartridge will be described.

Using the conventional optical disc recording and reproducing apparatus shown in FIG. 62 to FIG. 64, the cartridge loading in the tray, the cartridge holding mechanism, and the loading and ejecting operations of the tray will be described.

62 and 63, 1 is a cartridge in which an optical disc 10 is housed, 144 is an eject switch, 201 is a main body comprising an optical disc recording / playback mechanism mechanism 201a and a base frame 201b, and 204 is an optical disc ( It is a tray which mounts the cartridge which accommodates the illustration), and the optical disc 10 of a single body.                 

(Tray structure)

In the center of the cartridge mounting surface 233 of the tray 204, two large and small concave portions formed concentrically are formed. The large-diameter recesses are prepared to be divided by the large-diameter disk mounting portion 231 and the small-diameter recesses according to the outer diameter of the disk mounted on the optical disk recording / reproducing apparatus 201 by the small diameter disk mounting portion 232.

In addition, the tray 204 is provided with a front wall surface 234, a left wall surface 235, and a right wall surface 236 which are only slightly larger than the external dimension of the cartridge 1 and are formed perpendicular to the cartridge mounting surface 233. . On the inner side of the tray 204, the cartridge preload member 237 is installed through the compression coil spring 237a to move forward and backward, and the cartridge preload member 237 is moved forward of the tray 204 by the spring 237a. It is structured to be held by the holding part 250 in a pre-loaded state.

(Rack gear structure)

On the rear surface of the tray 204, a rack gear 288 is engaged with the drive gear 219 of the final stage of the loading gear system 281 driven by the loading motor 280 installed on the mechanism chassis 201a side. The tray 204 can be loaded and ejected by changing the rotational direction of the loading motor 280.

The tray 204 is configured to be loaded and ejected by changing the rotation direction of the loading motor 280 provided in front of the mechanism chassis 201a.

(Traverse base structure)

Spindle motor 282 for holding and rotating disk 10, optical pickup 283 and optical pickup 283 for reading information on disk 10 or recording information on disk 10, disk 10 The traverse base 266 holding the traverse motor 284 and the lead screw 297 for moving in the radial direction of is held in the mechanism chassis 201a.

(Traverse Base Holding Structure)

The traverse base 266 includes a spindle motor 282 for holding and rotating the disk, an optical pickup 283 for reading or writing information on the disk, and a traverse motor 284 for moving the optical pickup 283 in the radial direction of the disk. ) And the lead screw 297 are held.

The rear end of the traverse base 266 is rotatably held by the torsion spring 266a in the mechanism chassis 201a, and the front end is preloaded downward by light load.

On the left and right of the front end 266b of the traverse base 266, two slit holes 291 are formed, and the cam lever 285 inserted with the rotational shaft 292 provided at the bottom of the mechanism chassis 201a as the center of rotation. ) Is combined. The traverse base 266 is driven up and down by the rotation of the cam lever 285. The cam lever 285 is engaged with the tray 204 near the carry position and rotates in accordance with the operation of the tray 204.

(Alignment pin structure)

In addition to the spindle motor 282, the optical pickup 283, and the traverse motor 284, the traverse base 266 includes a positioning hole 3 of the cartridge 1 at the other end side 266b of the traverse base 266. Two alignment pins 214 are provided to engage and maintain the clearance of the disc 10 and the cartridge 1 held on the spindle motor 282 so that the cartridge 1 does not come into contact with the disc 10. Position on location.                 

(Cartridge Status Detection Switch Structure)

The disk state detection switch 215 is provided near the alignment pin 214. By determining the engagement state with the detection hole (not shown) of the cartridge 1, the status of whether or not the disc 10 is stored in the cartridge 1, the front and back of the disc 10, and the recording capacity of the disc 10 are determined. In order to detect, it is mounted in the printed circuit board. The plurality of detection switches 215 are provided integrally with the traverse base 266.

(Upper base structure)

An upper base 228 is provided as a top cover in the mechanism chassis 201a. The upper base 228 includes a clamper 210 that fixes the disk 10 to the spindle motor 282, and a clamp arm 212 that detachably holds the clamper 210 in the vertical direction with respect to the spindle motor 282. A cartridge press roller is arbitrarily provided in the cartridge press spring 229 which regulates the vibration of the cartridge 1 at the time of loading, and the four cartridge press parts 230 provided at both front and rear ends thereof. The pressing force on the lower side of the cartridge pressing spring 229 through the cartridge pressing portion 230 presses ribs on both left and right sides of the cartridge 1 to fix the cartridge 1 to the tray 204.

The pressing force of the cartridge pressing spring 229 presses the cartridge 1 to the tray 204 and the tray 204 to the mechanism chassis 209 from immediately after the start of loading to after the completion of loading, and the cartridge 1 and the tray. 204 has a function of eliminating the rattling generated between mechanism chassis 201a to reduce vibration and noise generated during loading and rotation of disk 10.                 

(Shutter opener structure)

In addition, the upper base 228 is provided with a shutter opener (not shown) for opening and closing the shutter 2 of the cartridge 1, and the cartridge 1 is provided by applying the shutter opener to the projection of the tip of the shutter 2. Loading is performed while opening to the right according to the loading operation of.

The disc 10 accommodated in the cartridge 1 can be rotated by the spindle motor 282 and recorded and reproduced by the optical pickup 283 when the shutter 2 is released.

(Clamper structure)

When the disk 10 is mounted on the spindle motor 282, the disk 10 is fixed to the turntable (not shown) on the spindle motor 282 by the clamper 210.

The clamper 210 is comprised by the member which can be divided into two upper and lower sides, and contains the magnet (not shown) inside. In addition, in order to center the disk 10 with respect to the turntable, a magnetic material (not shown) is embedded at the top of the center cone formed at the center. With the magnetic attraction force of the magnet and magnetic material embedded in the clamper 210, the clamper 210 fixes the disk 10 to the turntable.

(Traverse Drive Structure)

The optical pickup 283 is held so as to be movable in the radial direction of the disk 10 by two metal shafts designated as the major axis and the minor axis provided in the traverse base 266.

In the vicinity of the main shaft, a lead screw 297 directly connected to the traverse motor 284 is provided. The optical pickup 283 is provided with a nut piece coupled to the lead screw 297, and when the traverse motor 284 rotates, the disc 10 is attached to the optical pickup 283 through the nut piece coupled to the lead screw 297. The driving force in the radial direction is generated, and high speed movement is made possible at the target radial position of the disk 10.

(Optical pickup structure)

In the optical pickup 283, a semiconductor laser, a lens, a light receiving element (not shown), and the like are integrated at a high density. The objective lens is supported by the wire spring (not shown) so as to be movable up, down, back and forth in the opening of the upper surface of the optical pickup 283.

In order to perform recording and reproduction of data recorded on the back of the disk 10, the laser beam is focused on the back of the disk 10 to form a micro spot.

In order to continuously focus the laser light on radial vibration of the disk 10 and surface shake in the rotational axis direction, the objective lens is provided with an electromagnetic actuator (not shown) which generates driving force in the radial direction and the rotational axis direction.

(Rubber damper support)

The tray 204, the mechanism chassis 201a, the traverse base 266, the upper base 228, and the mechanism portion of the main body 201 of the optical disk recording / reproducing apparatus held or fixed thereto are loaded with the tray 204. Upon completion, it consists of one rigid state.

The four corners of the mechanism portion of the main body 201 of the optical disc recording / reproducing apparatus having the above structure are supported by the base frame 201b by the rubber damper 290. By being elastically supported by the rubber damper 290, the base frame 201b has an effect of reducing the influence on the recording / reproducing operation of the disc 10 when vibration or shock from the outside is applied. .

The operation of the optical disc recording / reproducing apparatus configured as described above will be described taking the case of reproducing the disc 10 stored in the cartridge 1 as an example.

(The cartridge deployment)

When the cartridge 1 is mounted on the tray 204 surrounded by the front wall surface 234, the left wall surface 235, and the right wall surface 236, the cartridge preload member 237 is disposed at the rear end of the cartridge 1. The cartridge 1 is slid downwardly obliquely from the front upper side of the tray 204 while being pushed inward with respect to the tray 204, and finally, the front end of the cartridge 1 contacts the inner wall of the front wall surface 234. The cartridge 1 is mounted on the cartridge mounting surface 233 and the mounting of the cartridge 1 on the tray 204 is completed.

At this time, the front end of the cartridge 1 is pressed by the cartridge preload member 237 inside the front wall surface 234, and the cartridge 1 is positioned with respect to the tray 204 without rattling back and forth.

(loading)

The tray 204 on which the cartridge 1 is mounted is automatically loaded inside the optical disc recording / reproducing apparatus main body 201 by the driving force of the loading motor 280, and the shutter of the cartridge 1 is opened by the opener. . Thereafter, the cartridge 1 is inserted into the positioning hole 3 of the cartridge 1 of the alignment pin 214 integrally formed on the traverse base 266 that fixes the spindle motor 282, the optical pickup, or the like. Is finally positioned relative to the tray 204 and the spindle motor. At about the same time, the state of the cartridge 1 is detected by the state detection switch 215. The disk is held by the clamper 210 on the turntable of the spindle motor 282 of the apparatus main body 201, and the disk is rotated in a recordable or reproducible state by the rotation of the spindle motor 282.

The tray 204 and the mechanism chassis 201a are resin molded products, and the sliding surface at the time of loading the mechanism chassis 201a is formed smoothly. The sliding surface of the lower surface of the tray 204 is in the shape of a rail having a convex cross section. Several guide members are provided in the vicinity of the sliding surface of the mechanism chassis 209 to prevent meandering during loading of the tray 204. It has a structure to prevent it.

When the tray 204 is loaded, a total of four cartridge pressing portions 230 provided at both the front and rear ends of the cartridge pressing spring 229 and the cartridge pressing spring 229 provided on the upper base 228 are provided with the cartridge 1. Press the ribs at the left and right ends of the side down. Through the cartridge 1 pressurized downward by the cartridge pressing portion 230, the tray 204 is pressed against the mechanism chassis 209, and the loading operation is performed without generating vibration and noise due to rattle in the vertical direction. Is done.

Until the tray 204 has finished loading, the spindle motor 282, the traverse motor 284, and the optical pickup 283 held on the traverse base 266 are provided with the tray 204, the cartridge 1, and the disc. In order to avoid interference with (10), evacuate below the loading path of the tray 204, and at the completion of loading they access the disc.

(Clamper lowering)                 

Immediately before the tray 204 is finished loading, the clamp arm driving protrusion 241 installed on the tray 204 pushes one side of the clamp arm 212 rotatably installed to the upper base 228 by a hinge. Raise and lower the other side where the clamper 210 is held. As a result, the clamper 210 is lowered to the position where the disk 10 can be clamped.

(Traverse Base Rise)

After the clamper 210 is lowered and the loading of the cartridge 1 mounted on the tray 204 is completed, the coupling between the tray 204 and the rack gear 288 is released, and the driving force by the drive gear 219. Is separated from the tray 204 and only the rack gear 288 is driven rearward with respect to the tray 204. The driving force to the rear of the rack gear 117 is transmitted to the cam lever 285 as a rotational force of the cam lever 285, whereby the traverse base 266 coupled to the cam lever 285 at the slit hole 291. ) Rises along the slope of the cam lever 285.

(Insert alignment pin)

As the traverse base 266 rises, two alignment pins 214 integrally formed with the traverse base 266 are inserted into the positioning holes 3 formed in the front of the cartridge 1.

During loading, the cartridge 1 is displaced relative to the spindle motor 282 by rattling against the mechanism chassis 201a of the tray 204 or rattling against the tray 204 of the cartridge 1. This happens. When the disc 10 is rotated in a state where the cartridge 1 is displaced with respect to the spindle motor 282, the outer peripheral portion of the disc 10 and the inner wall of the cartridge 1 come into contact with each other to generate noise. If the displacement is large, the contact may become a resistance, the clamp state of the disk 10 may be released, and the disk 10 may be damaged inside the cartridge 1.

The alignment pin 214 is inserted into the positioning hole 3 of the cartridge 1 so that the cartridge is finally positioned with respect to the tray 204 and the spindle motor so that the alignment pin 214 can be inserted into the spindle motor 205 of the cartridge 1. The displacement is improved and sufficient clearance is secured between the cartridge 1 and the disk 10.

(Detection switch inserted)

Before and after the insertion of the alignment pin 214 into the positioning hole 3 of the cartridge, the state detection switch 215 is also inserted into the state detection hole (not shown) of the cartridge 1.

Unlike the alignment pin 214, since a large clearance is secured between the state detection hole and the state detection switch 215, even if a position shift occurs in the cartridge 1, the state of the cartridge 1 is detected. The insertion operation is guaranteed with a margin.

(Disc clamp)

In parallel with the insertion of the alignment pin 214 and the state detection switch 215 into the cartridge 1, the center of the disk 10 accommodated in the cartridge 1 is centered in the process of raising the traverse base 266. The cone is inserted so that the disk 10 floats in the space in the cartridge 1.

As the disk 10 rises, the clamper 210 waiting at the clamp position engages with the center cone 222, and the clamp of the disk 10 is completed.                 

(Disc rotation)

When the clamp of the disk 10 is completed, the spindle motor 282 rotates, and the spot by the laser beam is irradiated to the back surface of the disk 10 from the optical pickup 283.

Thereafter, the recorded data is reproduced on the disc 10 in accordance with a command from the host PC.

(Disc release)

After the end of the predetermined recording and reproducing operation for the disc 1, the cartridge 1 and the cartridge ( The eject operation of the disk 10 stored in 1) is started.

The eject operation of the tray 204 is omitted because it is a process which is approximately the opposite of the loading operation.

The conventional optical disc recording and reproducing apparatus as described above includes a traverse base 266 for holding a spindle motor 282 for rotating a disc, an optical pickup 283, and the like, and a tray 204 for mounting and holding a cartridge 1. The loading motor 280 for loading the tray 204 is held in the mechanism chassis 201a, and the mechanism chassis 201a is supported on the base frame 201b through a damper.

However, in the conventional optical disc recording / reproducing apparatus, there is a problem that the apparatus is complicated and enlarged, and the load of the damper that blocks external vibration is large.

In addition, in realizing a structure in which the cartridge and the optical disc are integrally held, the driving load is large because it is necessary to simultaneously release the cartridge shutter, traverse base up and down, and position the cartridge simultaneously. In order to hold the cartridge and the optical disk integrally, a special driving structure is also required for the loading mechanism, which not only impedes the miniaturization of the apparatus, but also the miniaturization due to the following problems.

In other words, the clearance between the cartridge and the disc to be embedded is small, and it is necessary to suppress the relative positional shift between the cartridge and the disc to be embedded by being elastically held by the vibration and damper.

Fig. 67 shows a timing chart of the cartridge loading sequence of the apparatus main body 201 of the conventional optical disc recording / reproducing apparatus.

250 denotes a cartridge mounting operation for mounting the cartridge 1 in the tray 204.

251 is a cartridge front that mounts the cartridge 1 on the tray 204 and then presses the cartridge against the front wall surface 234 of the tray 204 by the cartridge preload member 237 provided on the rear side of the tray 204. Pressurization occurs.

As a next operation, 252 denotes a tray press-in operation for pushing the tray 204 into the optical disc recording / reproducing apparatus 201, and 253 denotes a load eject switch operation for pushing the load eject switch 246, thereby providing a tray 204 operation. This is used as a trigger to start loading.

After the selection of either the tray press-in operation 252 or the load eject switch operation 253, the loading operation of the tray 204 of 254 is started.

In parallel with the loading operation 254, a shutter opening operation for opening the shutter 2 of the 255 cartridge 1 and a pressurizing operation under the cartridge to the tray 204 of the 256 cartridge 1 are performed.

In addition, 257, the clamp preparation work in which the clamp arm and the clamper which engage with the protrusion formed in the tray 204 are positioned with respect to the cartridge 1 from just before the end of the loading operation 254 to the end of the loading operation 254 is carried out. Is done.

At the end of the loading operation 254, the shutter opening operation 255 of the cartridge 1 is also completed, and preparation for clamping the disk 10 contained in the cartridge 1 to the spindle motor is completed.

258 denotes a cartridge positioning operation in which the alignment pin 214 is inserted into the positioning hole 3 formed in the cartridge 1 so that positioning of the cartridge 1 with respect to the tray 204 is completed.

As the traverse base 208 rises, two alignment pins 214 integrally provided with the traverse base 208 are inserted into two positioning holes 3 formed in front of the cartridge 1.

During loading, the cartridge 1 is displaced relative to the spindle motor 205 by rattling against the mechanism chassis 209 of the tray 204 or rattling against the tray 204 of the cartridge 1. This happens. When the disc 10 is rotated in a state where the cartridge 1 is displaced with respect to the spindle motor 205, the outer circumference of the disc 10 and the inner wall of the cartridge 1 come into contact with each other to generate noise. If the displacement is large, the contact may become a resistance, the clamp state of the disk 10 may be released, and the disk 10 may be damaged inside the cartridge 1.

The alignment pin 214 is inserted into the positioning hole 3 of the cartridge 1, so that the displacement of the cartridge 1 with respect to the spindle motor 205 is improved, and the gap between the cartridge 1 and the disk 10 is improved. Sufficient clearance is secured.

In parallel with the positioning operation 258 of the cartridge, the status detection switch 215 enters the state detection hole 4 of the cartridge 1, and the state detection operation of detecting the state of the disc in the cartridge 1 is performed. Indicates.

Before and after insertion of the alignment pin 214 into the positioning hole 3 of the cartridge, the state detection switch 215 is also inserted into the state detection hole 4 of the cartridge 1.

Unlike the alignment pin 214, since a large clearance is secured between the state detection hole 4 and the state detection switch 215, even if a displacement occurs in the cartridge 1, the state of the cartridge 1 is not detected. In this regard, the insertion operation is guaranteed with a margin.

Reference numeral 260 denotes a disk clamping operation in which the spindle motor 205 is inserted through the center hole 5 of the disk 10 to clamp the disk to the spindle motor 205 with the clamper 210.

In parallel with the insertion of the alignment pin 214 and the state detection switch 215 into the cartridge 1, the center hole 53 of the disk 10 accommodated in the cartridge 1 in the process of raising the traverse base 208. ), The center cone 122 is inserted, and the disk 10 floats in the space in the cartridge 1.

As the disk 10 rises, the clamper 210 waiting at the clamp position is aligned with the center cone 222 so that the clamp of the disk 10 is completed.

Reference numeral 261 denotes a recording / reproducing operation in which the spindle motor 205 rotates the disk and the recording to or reading from the disk is performed by the action of the optical pickup 207.

When the clamp of the disk 10 is completed, the spindle motor 205 rotates, and the spot by the laser beam is irradiated to the back surface of the disk 10 from the optical pickup 207.

Thereafter, the recorded data is reproduced on the disc 10 in accordance with a command from the host PC.

After the end of the predetermined recording and reproducing operation for the disc 1, the cartridge 1 and the cartridge 1 are again in accordance with a command from the PC or an input signal from the eject switch 144 of the disc recording and reproducing apparatus 201. The ejection operation of the disk 10 housed in the box is started.

The eject operation of the tray 204 of the conventional optical disc recording / reproducing apparatus is omitted because it is a process which is approximately the opposite of the loading operation.

In the above conventional optical disc recording and reproducing apparatus, there are the following problems.

(1) Since the load for pressing the cartridge by the cartridge pressing spring is superimposed on the loading load of the tray unit during the loading operation of the cartridge into the tray and loading into the optical disc recording / reproducing apparatus, the loading motor and the loading gear system The load was large.

(2) During the loading operation, although the cartridge pressing spring presses the cartridge against the tray through the cartridge pressing portion (roller), the surface of the cartridge may be damaged by inserting foreign matter between the cartridge pressing portion and the cartridge.

(3) During the positioning operation of the cartridge, the pressing force in the front-rear direction by the cartridge preload member and the pressing force by the cartridge pressing spring cause the friction force on the tray to overlap the weight of the cartridge so that the insertion force of the alignment pin increases. The load on the support structure of the alignment pin, the loading motor for driving the alignment pin up and down, and the loading gear system were large.

(4) When the displacement of the cartridge is large, insertion and alignment pins become difficult due to the friction force against the tray due to the front and rear pressing force by the cartridge preload member and the pressing force by the cartridge pressing spring, so that the positioning of the cartridge can be performed accurately. There could not be.

Using the CD-ROM drive structure of the conventional optical disc recording / reproducing apparatus, a description will be given of the operation of the apparatus and the shielding structure of the opening portion in which the tray is loaded and ejected.

In Fig. 68, 201 is an apparatus main body of an optical disc recording and reproducing apparatus, 202 is an opening for entry and exit of the tray, 203 is an operation button of a load / eject switch, and 204 is a tray on which an optical disc is mounted.

In the center of the cartridge mounting surface 233 of the tray 204, two large and small concave portions 231 and 232 formed in concentric circles are formed. The large-diameter recess 231 is prepared to be divided by the large-diameter disk mounting portion and the small-diameter recess 232 according to the outer diameter of the disk mounted on the optical disc recording / reproducing apparatus main body 201 in the small-diameter disk mounting portion.                 

In addition, a tray ornament 205 is formed on the front surface of the tray 204. Upon completion of loading of the tray 204, the tray ornament 205 is configured to shield the opening 202 of the optical disc recording / reproducing apparatus main body 201. As shown in FIG.

The rear surface of the tray 204 is provided with a rack gear (not shown) which engages with the drive gear of the final stage of the loading gear system which is linked to a loading motor (not shown) provided in front of the mechanism chassis of the apparatus main body 201. have. As a result, the tray 204 is configured to be loaded and ejected by changing the rotational direction of the loading motor.

In this way, the CD-ROM drive has a tray 204 corresponding only to a disk, and the opening 202 is shielded by the tray ornament 205 and the tray ornament 205 integrated with the tray 204. In addition, since the tray 204 is mechanically locked after the tray is loaded, and the opening 202 is shielded by the tray ornament 205, it is impossible to manually pull out the tray 204, and from the outside to the inside of the apparatus. It is impossible to insert fingers or foreign objects.

In this conventional optical disc recording and reproducing apparatus, there are the following structural problems.

In the structure of the conventional tray 204, it was impossible to mount both a single disc and a disc housed in a cartridge. For example, even if the structure of the disk mounting surface of the tray 204 is changed to a structure in which the cartridge can be mounted, the tray ornament 205 is provided on the front surface of the tray 204. When mounting and taking out the cartridge, inconvenience was caused because the portion holding the cartridge is limited to the side of the cartridge. Particularly, there has been a problem that it is a difficult task for a child with a small hand or an elderly person who is weak in grasping a cartridge with a fingertip to perform the mounting and ejecting operation of the cartridge.

In order to cope with the cartridge, when the tray ornament 205 is removed or a notch is formed in a part of the tray ornament 205 so that it can be held at the front of the cartridge, an opening portion is formed on the front of the optical disc recording / reproducing apparatus with respect to the outside of the apparatus. There is a possibility that garbage or foreign matter may be mixed into the device during operation of the device, or the child may come into contact with the rotating disk, causing injury. In addition, the diffracted light of the powerful laser light reflected from the recording surface of the disk from the openings on the front surface began to leak to the outside, and the diffraction light might enter the eye and cause injury to the retina, depending on the type of installation of the apparatus.

Further, in the optical disc recording / reproducing apparatus which does not have a tray called a slot-in method and has a roller on the front surface of the optical disc recording / reproducing apparatus, and loads the disk into the apparatus by rotating the roller, only the single disc is supported. If there is a passage through which a thin disk can pass, a lid for shielding the opening is not necessary. However, when the slot-in system corresponding to the cartridge is adopted, a passage through which a thick cartridge can pass is required, and as a result, a lid structure for shielding the opening is required.

The conventional optical disc recording and reproducing apparatus shown in Figs. 62, 69 and 70 will be described. In the figure, 201 denotes a main body of an optical disc recording and reproducing apparatus, 204 denotes a tray on which an optical disc (not shown) is housed, and a tray for mounting a single optical disc (not shown), and 205 is provided on a tray 204. A state detection switch 206 for detecting completion of mounting of the cartridge 1 is a flexible lead that connects the state detection switch 205 and a control circuit.

In the center of the cartridge mounting surface 233 of the tray 204, two large and small concave portions formed concentrically are formed. The large-diameter recesses are prepared to be divided by the large-diameter disk mounting portion 231 and the small-diameter recesses according to the outer diameter of the disk mounted on the disk recording / playback apparatus 201 by the small-diameter disk mounting portion 232.

In addition, the tray 204 is provided with a front wall surface 234, a left wall surface 235, and a right wall surface 236 which are only slightly larger than the external dimension of the cartridge 1 and are formed perpendicular to the cartridge mounting surface 233. . On the inner side of the tray 204, the cartridge preload member 237 is installed via the compression coil spring 237a so as to be movable in the front-rear direction, and the cartridge preload member 237 is maintained in the preloaded state in front of the tray 204. It is a structure held by the part 250.

The rear surface of the tray 204 is provided with a rack gear (not shown) that engages with the drive gear of the final stage of the loading gear system driven by the loading motor provided in front of the mechanism chassis, thereby changing the rotation direction of the loading motor. The tray 204 can be loaded and ejected.

The operation of the disc recording / reproducing apparatus configured as described above will be described taking the case of reproducing the disc stored in the cartridge 1 as an example. When the cartridge 1 is mounted on the tray 204 surrounded by the front wall surface 234, the left wall surface 235, and the right wall surface 236, the cartridge preload member 237 is disposed at the rear end of the cartridge 1. While sliding inward against the tray 204, the cartridge 1 slides obliquely downward from the front upper side of the tray 204, and finally, the front end of the cartridge 1 is placed on the inner wall surface of the front wall surface 234. The cartridge 1 is mounted on the cartridge mounting surface 233 and the mounting of the cartridge 1 on the tray 204 is completed.

At this time, the front end of the cartridge 1 is pressed by the cartridge preload member 237 to the inside of the front wall surface 234, and the cartridge 1 is roughly positioned with respect to the tray 204 without rattling back and forth and left and right. .

Further, the detection switch 205 is pushed on the side of the insertion end of the cartridge 1. For this reason, the loading motor 212 starts to operate, and the tray 204 on which the cartridge 1 is mounted is automatically loaded into the disc recording and reproducing apparatus main body 201 by the driving force of the loading motor 212. After that, the cartridge is finally inserted into the tray 204 and the spindle motor by the insertion operation of the omitted alignment alignment pin into the cartridge which is integrally formed on the traverse base fixing the omitted spindle motor, optical pickup, and the like. Is positioned.

In the said prior art example, there existed the following subjects.

(1) In the case of inserting the cartridge on the optical disc recording / reproducing apparatus side, it was necessary to avoid inserting the cartridge into the optical disk recording / reproducing apparatus from an oblique upper side, avoiding the front wall surface of the front end of the tray.

When this operation is performed, when the position in the height direction where the optical disc recording / reproducing device is provided is at a height equal to or greater than that of the operator performing the insertion operation, the operation of inserting the cartridge becomes unnatural and becomes unusable. there was.                 

(2) When the cartridge is inserted into the recording and reproducing apparatus, the cartridge is pushed against the preload force of the cartridge preload member, and then the cartridge is surrounded by the front wall of the tray, the left wall, the right wall, and the cartridge preload member. After confirming that the cartridge was completely mounted on the surface, a plurality of operations were required in which the insertion of the cartridge into the optical disc recording and reproducing apparatus was completed by pushing the tray into the apparatus or operating a loading switch installed in another part.

(3) In this case, when the operator incorrectly mounts the cartridge on the tray in an irregular state and loads the tray with the cartridge placed on the front wall or the left and right walls, the optical disc recording and reproduction is performed during the loading of the tray. The tray opening of the apparatus and the cartridge interfered with each other and the loading operation was stopped.

However, in the configuration in which the cartridge itself avoids misoperation of loading, there is a possibility that a scratch occurs on the surface of the cartridge or, in the worst case, the cartridge is broken.

(4) When a detection switch is provided on a tray that moves during loading and ejecting, the insertion of a cartridge into an optical disc recording and reproducing apparatus is automatically performed without pushing the tray or operating an operation switch set to another part. You can complete with

However, since the detection switch also moves with the tray, the arrangement of the wiring members for transmitting signals becomes complicated, and furthermore, the reliability is deteriorated.

At present, as a recording medium of an information device such as a computer, a read-only disc such as a CD-ROM, or a rewritable disc of a magneto-optical method or a phase change method is used.

In the conventional optical disc recording and reproducing apparatus shown in Figs. 62 to 64, in the case of the loading apparatus using both the cartridge and the disc, the cartridge is mounted against the load when opening and closing the shutter of the cartridge or the load of the cartridge. Since the load carried in is large, the drive system design, such as a gear ratio, is generally performed by the cartridge main body.

As a result, a large driving torque is required, and when gear ratios are selected at the correct speed at the time of carrying in the cartridge, in the case of no media or in the case of disk, the speed of the loading means such as the tray is too fast, resulting in noise during loading. do.

In addition, it is necessary to reduce the noise by changing the profile of the drive system while determining the state of the loading apparatus due to individual differences and changes over time of the disc loading apparatus.

62 to 67 have the following problems in the conventional optical disc recording and reproducing apparatus.

(1) Since the alignment pin and the state detection switch are integrated with the traverse base holding the spindle motor, etc., it is necessary to drive the traverse base with a large external shape and a heavy weight up and down during loading or ejecting. The noise generated by the increase in the vertical driving force of the traverse base and the collision between the traverse base and the chassis during ejection has increased.

(2) Since the traverse base has a large external shape, there is a limitation in the arrangement of the loading motor and the gear system which perform the loading and ejection driving, the sufficient reduction ratio cannot be secured, and the noise generated during loading and ejecting has increased. .

(3) Since the cartridge after the loading is completed has a structure that is integrally held with the traverse base, the upper base, the tray, and the mechanism chassis, the damper member that absorbs the disturbance vibration supports the heavy mechanism chassis. In consideration of the deformation caused by the time-dependent change of the damper member, it is necessary to adopt rubber with high rubber hardness, and large disturbance vibration cannot be sufficiently absorbed.

(4) In the case of mounting the cartridge on the tray, the cartridge is pressed by the cartridge preload member to the inside of the tray front wall surface and positioned.

For this reason, in the case of adjusting the position of the cartridge at the time of loading the cartridge, the driving force for inserting the alignment pin into the positioning hole of the cartridge is required to move the cartridge back and forth or from side to side against the pressing force by the cartridge preload member. There is a problem that the load on the loading motor and the loading gear system increases, and the power consumption and noise increase.

(5) When loading the cartridge, the cartridge is pressed against the cartridge mounting surface of the tray by the cartridge pressing spring and the cartridge pressing roller.

For this reason, in the case of adjusting the position of the cartridge at the time of loading the cartridge, the driving force for inserting the alignment pin into the positioning hole of the cartridge resists the pressing force by the cartridge pressing spring and the cartridge pressing roller to move the cartridge back and forth or from side to side. There is a problem that it is necessary to move, the load on the loading motor and the loading gear system increases, and the power consumption and noise increase.

Further, in the conventional optical disc recording and reproducing apparatus shown in Figs. 62 and 63, there are the following problems.                 

(1) As described above, the tray 204 and the mechanism chassis 201 are resin molded products, and the sliding surface during loading of the mechanism chassis is smoothly formed. The sliding surface of the lower surface of the tray which is in sliding contact with the sliding surface has a rail shape having a convex cross section. Moreover, several guide members are provided in the vicinity of the sliding surface of a mechanism chassis, and it has a structure which prevents meandering at the time of loading of the tray 204. Moreover, as shown in FIG.

However, in consideration of the dimensional shrinkage due to the temperature change, the configuration allows the gap in the width direction to create the left and right rattling of the tray 204.

(2) When the cartridge 1 is mounted on the tray 204, the rotation moment is applied to the tray 204 due to the load of opening and closing of the shutter of the cartridge 1, so that the loading difference and the ejection direction are respectively one side. In an aura state, the tray 204 is conveyed.

(3) When the cartridge 1 mounted on the tray 204 is loaded, and the alignment pin fitting hole of the traverse base and the alignment pin fitting hole of the cartridge engage, the mechanism chassis 201 and the tray 204 are left and right rattled. If this is large, the positioning failure of the cartridge 1 will be caused, and accurate positioning of the traverse base will become difficult.

(4) Although the upper and lower regulating of the tray 204 is performed by the mechanism chassis 201 and the upper base 228, since the upper and lower ratt cannot be made zero, it becomes an instability factor of the tray at the time of cartridge operation.

Further, in the conventional optical disc recording and reproducing apparatus shown in Figs. 62 and 63, there are the following problems.

(1) In the case of mounting the cartridge in the tray of the optical disc recording and reproducing apparatus, it was necessary to avoid inserting the cartridge into the tray obliquely from above, avoiding the front wall surface of the tray front.

When this operation is performed, when the position in the height direction in which the disc recording / reproducing device is installed is at a height equal to or higher than that of the operator performing the mounting operation, the mounting operation of the cartridge becomes unnatural and becomes unusable. there was.

This subject was the same subject when the disk which is not accommodated in a cartridge is mounted in a tray.

(2) When the cartridge is mounted in the tray, the cartridge is pushed against the preload force in front of the cartridge preload member, and then the cartridge is placed on the front surface of the tray, the left wall, the right wall, and the cartridge mounting surface surrounded by the cartridge preload member. After confirming that the is fully loaded, a plurality of operations were required in which the insertion of the cartridge into the disc recording and reproducing apparatus was completed by pushing the tray into the apparatus or operating the loading SW.

(3) The tray opening of the disc recording / reproducing apparatus during the loading of the tray when the operator incorrectly mounts the cartridge in the tray in an irregular state and loads the tray with the cartridge placed on the front wall or the left and right walls. And the cartridge interferes with the loading operation.

However, in the configuration in which the cartridge itself avoids misoperation of loading, there is a possibility that the surface of the cartridge may be damaged or, in the worst case, the cartridge may be broken.

(4) For the operation of mounting or taking out the cartridge in the tray, it is necessary to form notches on the front wall surface and the left and right wall surfaces surrounding the cartridge mounting surface, and generally, the notch is formed near the center of the front wall surface. The structure was mainstream.

However, since the operator can only hold the cartridge at the position where the notch is formed on the wall surface, the operator is forced to perform an unnatural operation of holding the upper and lower surfaces of the cartridge with his fingers, so that the elderly or children who have weak power to hold the fingertips are weak. The burden was supposed to be big.

(5) Moreover, the structure of the tray which has a front wall surface, the left-right wall surface, and the notch part of a wall surface had many constraint conditions and was low in freedom of design.

The present invention provides a disk device, in particular a cartridge holding mechanism thereof, which can be miniaturized and can reduce a damper load.

Another object of the present invention is to provide a disk device capable of reducing the load on the loading motor, reducing the insertion force for positioning the cartridge by the alignment pin, and facilitating accurate positioning of the cartridge. The loading method and mechanism are provided.

Another object of the present invention is to provide a disk device, in particular a door lock mechanism, which can close the opening almost completely in the loading state, eliminate the tray decoration of the tray, and can be applied to the slot-in disk device of the cartridge. To provide.

Another object of the present invention is to provide a disk device, in particular an auto loading mechanism, which can simplify the loading operation of the cartridge and simplify the arrangement of the wiring member of the detection switch, thereby maintaining the reliability.                 

Another object of the present invention is to solve the problems of discomfort caused by the difference in speed of loading with and without the type of medium, individual difference of the disc loading apparatus, variation in loading time due to change over time, and noise during driving. It is to provide a disk device.

Another object of the present invention is to provide a disk apparatus which solves the problems of discomfort and driving noise caused by the speed difference of loading immediately after media replacement. In other words, in the case of a loading device using both a cartridge and a disk corresponding to a plurality of types of media, the user may feel discomfort if the profile of the drive system according to the media is not changed immediately after the media is replaced.

Another object of the present invention is to provide a disk apparatus which solves the problems of the variation in loading time and the noise during driving due to the temperature change of the disk loading apparatus. That is, since the loading time and ejection time of the drive system also change with the internal temperature of the disk loading apparatus, it is necessary to change the profile of the drive system while determining the internal temperature of the loading mechanism.

Another object of the present invention is to provide a disk device which solves the problem of obtaining an optimum drive profile with a simple algorithm. That is, in order to obtain an optimal drive profile by measuring the time of loading and ejecting, and taking into account deviations including the type and size of the loaded media, individual differences of disk loading devices, changes over time, temperature change, etc., It is necessary to detect the state of the disk loading apparatus by the algorithm.

Another object of the present invention is to provide a disk apparatus which solves the problem of noise during driving that occurs when the clamp mechanism holds the media during loading. That is, in a loading apparatus for handling disks, generally, a disk clamp mechanism using a suction force of a magnet and a magnetic material is used as the disk holding means. This mechanism, which has a simple structure, also generates large noise due to impact when the disc is held by the clamp mechanism or when the clamp mechanism is released, since the adsorption force between the magnet and the magnetic body is inversely proportional to the square of the distance.

Another object of the present invention is to provide a disk apparatus which solves the problem of noise during driving that occurs when the clamp mechanism releases the media during ejection.

Another object of the present invention is to provide a disk apparatus which solves the problem of selecting a high speed and fast procedure algorithm as the computing means. That is, when performing the learning control of the drive mechanism by the measurement result of loading time and ejection time, and the drive profile prepared previously, it is necessary to select a high speed and fast algorithm as a calculation means.

Another object of the present invention is to provide a cartridge positioning mechanism of a disk apparatus capable of miniaturizing and reducing the traverse base and reducing driving force and noise in order to solve the above problems.

It is another object of the present invention to provide a disk device, in particular its loading mechanism, which can stably carry in and out the tray without rattling, and also ensure the positional accuracy at the loading completion position.

Another object of the present invention is to provide a disk device, in particular, a cartridge retaining mechanism, capable of facilitating detachment of a single optical disk and a cartridge.

The disk apparatus of the present invention includes a disk rotating means for mounting and rotating a disk, a traverse base for holding the disk rotating means, a damper member for holding the traverse base elastically, and an apparatus body for holding the traverse base through the damper member. And a tray on which the cartridge containing the disc is mounted, and drive means for bringing in or taking out the tray to access or separate the disc of the cartridge from the disc rotating means, wherein the cartridge is supported by the apparatus body through the tray.

According to this configuration, the cartridge and the disc enclosed are held separately in the device body, for example in the chassis, via a damper member within the disk device, and for example the cartridge is fixed integrally with the device body via the tray, and the traverse base Since the structure is supported by the damper member, it is possible to reduce the load of the damper member and to realize a compact device structure and a compact and lightweight device, such as a conventional base frame, which is unnecessary. It is also possible to reduce the driving load when carrying in. In addition, when the damper member is molded from a rubber material, it becomes possible to realize a simple configuration of the function of blocking the vibration from the outside while elastically holding the traverse base.

In the above configuration, the traverse base holding member moves up and down with respect to the apparatus body by the drive means when the tray is loaded or unloaded, and the traverse base is elastically held by the traverse holding member through the damper member.

For this reason, the mechanism for carrying a cartridge into the apparatus can be simplified, and the apparatus can be miniaturized.

In the above configuration, the damper member imparts a preload in a direction parallel to the surface of the traverse base.

For this reason, it is possible to improve the repetitive positioning accuracy of the traverse base when the traverse base holding member is driven up and down.

In the above configuration, the resonant frequency of the damper member in the radial direction and the rotational direction of the loaded disk is set higher than the maximum rotational frequency of the disk.

For this reason, it is possible to avoid contact between the cartridge and the optical disk by minimizing the vibration of the traverse base due to the shake rotational vibration generated when the optical disk having the eccentric center is rotated at high speed.

In the above arrangement, a positioning member for positioning the cartridge by inserting the tray on which the cartridge is mounted into the positioning hole formed in the cartridge while being brought into the apparatus body by the driving means, and the cartridge is positioned by the positioning member. It has a pressing member which presses a cartridge to a tray in the state orthogonal to the disk recording surface of a disk in the state.

According to the above configuration, after the cartridge containing the disk mounted on the tray is loaded into the optical disk apparatus as in the loading method described below, the positioning operation of the cartridge for inserting the positioning member into the cartridge positioning hole, A detection operation for detecting the detection hole is performed, and after that, the disk is held by the disk rotating means and the disk clamp member, and a cartridge pressing operation for pressing the cartridge by the cartridge pressing member is performed to pressurize the cartridge at the time of loading the tray. There is no sliding load by the cartridge, the cartridge surface is not damaged by the cartridge pressing member, and the positioning operation is facilitated. In addition, since the load due to the pressing force can be reduced, smooth conveyance can be realized, a low torque motor can be used, and a low power consumption device can be realized. In addition, since the load is reduced, the life of the driving means can be extended.

In the above arrangement, a positioning member for positioning the cartridge by inserting the tray on which the cartridge is mounted into the positioning hole formed in the cartridge in a state where the tray on which the cartridge is mounted is carried into the apparatus body by the driving means, and the cartridge and the cartridge carried in the apparatus body. A state detecting means for detecting a state detecting hole of the cartridge indicating the state of the disk of the disc, a disc clamp member for clamping the disc to the disc rotating means, and a perpendicular to the disc recording surface of the disc with the cartridge positioned by the positioning member. It has a cartridge pressurizing member which presses a cartridge to a tray from a direction.

In the above configuration, the disk apparatus has lifting means for approaching the disk with the disk rotating means for mounting and rotating the disk, and the cartridge pressing member is driven by the lifting means.

According to this configuration, since the cartridge pressing member is driven by the traverse base lifting means for supporting the disk rotating means, the dedicated driving means of the cartridge pressing member is unnecessary.

In the above configuration, the cartridge pressing member presses the tray in a direction orthogonal to the conveying direction after the single disc is loaded into the apparatus body and when the cartridge is not in the tray.

According to this configuration, when the single disk is loaded into the optical disk apparatus, the cartridge pressing member is configured to press the tray from above, so that vibration of the tray can be suppressed.

In the above configuration, at least one pair of cartridge pressurizing members are provided symmetrically with respect to the conveyance direction of the cartridge, and press the substantially center position in the inward direction of the cartridge.

According to the above configuration, at least one pair of cartridge pressing members are provided symmetrically with respect to the cartridge, and the cartridge pressurizing member can be reliably pressurized because the cartridge pressurizes the substantially central portion of the inner length of the cartridge.

In the above configuration, a device body having an opening for carrying in or taking out a disk or a cartridge containing the disk, a door installed to open and close the opening, the door being closed in the loading state of the disk or cartridge, and the opening of the closed door to be prevented. It is provided with a locking means.

According to this configuration, since the opening can be closed and locked by the door, it is possible to prevent dust or foreign matter from entering the apparatus main body from the outside of the apparatus after the disk or cartridge is brought into the apparatus. In addition, it is possible to forcibly open the door from the outside of the device while the device is in operation to prevent children from injuring themselves by contacting the disc of the group, and also prevent the diffraction light, which is a powerful laser light, from leaking to the outside of the device. Therefore, it is possible to close the opening almost completely in the loading state, to make the tray ornament of the tray unnecessary, and to apply to the slot-in type disk apparatus of the cartridge.

In the above configuration, the apparatus main body has a tray for loading or unloading the disk or cartridge through the opening, and the locking means is engaged with the tray to prevent the opening of the door by the loading operation of the tray.

According to this structure, when constituting the locking means, it is possible to realize the locking means of the door by adding a few components without installing a complicated mechanism or an electric circuit separately.

In the above configuration, the apparatus main body has a motor and a slide member moving in conjunction with the motor, and the locking means is engaged with the slide member and prevents the opening of the door by the operation of the slide member.

According to this configuration, when the motor is a drive motor of a disk, as shown in claim 2, it is possible to realize the door lock means by adding a number of parts.

In the above configuration, the locking means is configured integrally with the slide member.

This configuration makes it possible to further reduce the number of parts, and there is no substantial increase in the parts cost in realizing the locking means.

In the above configuration, in the carrying out state of the tray, mounting detection means for detecting that the cartridge is disposed at a normal position on the tray and outputting a detection signal, and inputting the detection signal to output an operation command to the drive means. It has control means.

For this reason, the cartridge is only detected by the mounting detecting means provided in the apparatus main body, and the tray is not detected by pushing the tray or operating the operation switch set at a separate site. It is possible to automatically complete the insertion of the cartridge into the optical disc recording and reproducing apparatus. In addition, since the device detecting means is provided on the fixed side of the mechanism apparatus main body, not on the moving tray, for example, wiring of the state detecting means can be easily performed, ensuring reliability, and the cartridge is simply placed on the tray. Detection can be easily performed, and the insertion of the cartridge can be automatically waxed.

In the above configuration, the cartridge has a detecting member for detecting the arrangement of the normal position on the tray, and the mounting detecting means responds to the detecting operation of the detecting member.

For this reason, even if the state detection means and the cartridge in the normal mounting position are separated by the detection member, the mounting detection means can be easily installed on the fixed side of the mechanism apparatus body, for example, instead of on the tray for moving. The wiring of the switch can also be facilitated.

In the above configuration, the cartridge holding means detachably engages with the engaged portion of the cartridge, and has a cartridge holding means for positioning and fixing the cartridge with respect to the tray, wherein the cartridge holding means also serves as a detection member.

For this reason, it is unnecessary to separately provide a detection means for detecting the completion of the cartridge at the cartridge-mounted regular position.

In the above configuration, the control means for controlling the drive means according to a predetermined drive profile that sets a different speed according to the elapsed time from the start of the movement of the tray to the completion of the tray, and the completion of loading and unloading by the drive means is detected. And means for calculating the loading and unloading time of the disc by the drive means based on the detection result of the detection means, wherein the control means includes a speed and an elapsed time of the drive profile in accordance with the measurement time of the calculation means. It is characterized by changing at least one of.

According to this configuration, it is possible to reduce the discomfort caused by the difference in speed of loading with the type of medium, the presence or absence of the medium, and the variation in loading time due to individual differences or changes in time of the disc loading apparatus and the noise during driving.

In the above configuration, the apparatus includes media discriminating means for discriminating the shape and size of the disk, and the control means changes the driving profile for each media according to the discrimination result of the media discriminating means.

According to this configuration, the discomfort of the discomfort caused by the speed difference immediately after the replacement of the media in both of the loading mechanisms corresponding to the plural kinds of media can be reduced and the noise during driving can be reduced.

In the above configuration, the apparatus has a measuring means for measuring the internal temperature of the apparatus, and the control means changes the driving profile for each predetermined temperature according to the measurement result of the internal temperature.

According to this structure, the deviation by the temperature change of the loading time and ejection time of the drive system of a disk loading apparatus becomes possible.                 

In the above configuration, the control means changes the operation time of the drive means by arithmetic processing based on the drive processing number assigned to each inflection point of the drive profile and the measurement result of the loading and unloading time obtained by the calculation means.

According to this configuration, it is possible to obtain the result of time measurement at the time of loading and ejecting, and the type and size of the loaded medium, the individual difference of the disc loading apparatus, the change over time, and the drive profile according to the temperature change.

In the above configuration, as the drive profile when the disc is brought into the apparatus, the point where the disc engages with the holding means is selected as the inflection point.

This makes it possible to reduce the noise generated when the clamp mechanism holds the media at the time of loading.

In the above configuration, the inflection point selects the point at which the disc is disengaged from the holding means as the drive profile when the disc is taken out of the device.

This makes it possible to reduce the noise generated when the clamp mechanism releases the media during ejection.

In the above arrangement, the computing means sets a variable as the main drive time in the drive profile, assigns the drive process number to the drive profile every predetermined time, and drives if the drive process number detected by the detection means is greater than the optimal number obtained in advance. The operation time of the driving means is shortened if the operation time of the means is long and the driving process number detected by the detection means is smaller than the optimum number obtained beforehand.

Thereby, using this algorithm, it is possible to perform the learning control of the drive mechanism at a high speed and at a high speed by the measurement results of the loading time and the eject time and the drive profile prepared in advance.

In the above arrangement, the computing means assigns a unique value to a drive process number other than the optimum number, and when the drive process is terminated at the drive process number, adds a unique value to the drive process number to the operation time of the drive means. .

Thereby, using this algorithm, the learning control of the drive mechanism can be performed at high speed and at high speed by the measurement results of the loading time and the eject time and the drive profile prepared in advance.

In the above configuration, the calculating means multiplies the difference between the driving process number and the optimum number by a coefficient, and adds to the operating time of the driving means.

Thereby, using this algorithm, the learning control of the drive mechanism can be performed at high speed and at high speed by the measurement results of the loading time and the eject time and the drive profile prepared in advance.

In the above configuration, the control means for controlling the drive means according to a predetermined drive profile for setting a different speed according to the elapsed time from the start of the movement of the tray to the completion of the tray, and the media discriminating means for discriminating the shape or size of the disc. And control means for changing at least one of the speed and the elapsed time of the drive profile in accordance with the determination result of the media discriminating means.

In the above configuration, the control means comprises a control means for controlling the drive means in accordance with a predetermined drive profile for setting a different speed according to the elapsed time from the start of the movement of the tray to the completion, and the means for measuring the internal temperature of the apparatus. The control means changes at least one of the speed and the elapsed time of the drive profile according to the measurement result of the high internal temperature.

In the above configuration, the positioning means is provided with a positioning means capable of engaging or disengaging with the positioning hole of the cartridge, wherein the positioning means engages with the positioning hole of the cartridge in the completion state of loading of the tray.

According to this configuration, by providing the positioning means separately from the traverse base, it is possible to construct a traverse base having a small external shape and a light weight, and the driving torque, gear load, Noise reduction was possible.

In the above configuration, the positioning means has positioning means held in the apparatus body so as to be engaged or detached from the positioning hole of the cartridge, the positioning means engages with the positioning holes of the cartridge in the loading state of the tray, and the apparatus body is By holding the damper member and the drive means to keep the tray in and out.

In the above configuration, the damper member is provided in the traverse holder, and the traverse holder is held in the apparatus body.

In the above configuration, the positioning means is engageable or detachable from at least one of the two right and left positioning holes of the cartridge.

According to this structure, the margin of the positioning means of the cartridge can also be enlarged.                 

In the above configuration, the positioning means is held so as to be adjustable back and forth with respect to the apparatus body.

According to this configuration, the accuracy of positioning of the cartridge can be improved by adjusting the positioning means back and forth.

In the above configuration, the traverse base and the positioning means are provided with a cam member for vertically driving, and the traverse base and the positioning means share the same cam mechanism provided in the cam member.

According to this configuration, the traverse base and the positioning means share the same cam mechanism, thereby avoiding the deviation of the vertical drive sequence of the traverse base and the positioning means due to the deviation of the profile of the cam mechanism due to initial and time-consuming wear. It became possible.

In the above configuration, a guide member for guiding the up and down driving of the positioning means is provided, the guide member has a multi-step taper shape, and the gap between the positioning means and the guide member is such that the positioning means inserts the positioning hole of the cartridge. Is to be minimized to

According to this configuration, by minimizing the gap between the positioning means and the guide member at the time of cartridge insertion, it is possible to reduce the driving load before insertion and to improve the positioning accuracy at the time of insertion.

In the above arrangement, the cartridge has a state detecting hole indicative of the state of the disk contained in the cartridge, and the state detecting means held in the apparatus body so as to be coupled to or detached from the state detecting hole, and the positioning means and the state detecting means. Is going up and down synchronously.

According to this configuration, by providing the state detecting means separately from the traverse base, it becomes possible to construct a traverse base having a smaller appearance and a lighter weight of the traverse base, and drive torque and gear load during loading and ejecting. As a result, the noise can be further reduced.

In the above configuration, the second driving means for vertically driving the positioning means is provided.

According to this configuration, by providing the second drive means for driving the positioning means up and down, even if the cam mechanism for driving the positioning means up and down, for example, is far from the position at which the positioning means inserts the positioning means into the positioning hole, positioning is possible. In response to the bending stress generated at the time of insertion of the means, it is possible to increase the insertion force of the positioning means.

In the above configuration, the second driving means stops the driving force immediately before the positioning means completes the engagement with the positioning hole of the cartridge.

According to this configuration, by stopping the driving force of the second drive means after completion of insertion of the positioning means into the positioning hole, creep deformation occurring in the second drive means generated when the loading state is continued for a long time is avoided. It becomes possible.

In the above arrangement, after the state detecting means is separated from the state detecting hole of the cartridge, a movement regulating means for regulating the movement of the state detecting means is provided.

According to this configuration, since the rise is regulated after the state detecting means is separated, it is possible to avoid the interference between the tray or the cartridge and the state detecting means at the time of ejection.

In the above configuration, the second drive means and the movement control means are integrally configured.

According to this configuration, the number of parts can be reduced by integrally configuring the second driving means of the positioning means and the restricting means of the state detecting means.

In the above configuration, the shutter is provided with shutter opening and closing means for opening the shutter of the cartridge, and the tray has the positional reference of the cartridge in the direction in which the shutter opening and closing means opens the shutter of the cartridge, and the positioning means is provided in at least one place. .

According to this configuration, by providing the positioning means at least on the open side of the shutter of the cartridge, the positioning in the left and right directions of the cartridge becomes unnecessary, and the positioning means can only perform the positioning in the front-rear direction.

In the above configuration, a holding means for linearly transporting the tray between the carry-in position and the carry-out position is provided, and drive means for driving the tray in or out of the tray.

For this reason, the holding means makes it possible to secure the stability when mounting the cartridge in the tray and the positional accuracy of the cartridge with respect to the apparatus body such as the traverse base when the loading is completed.

In the above configuration, the cartridge has opening and closing means for opening and closing the shutter of the cartridge, and the tray has cartridge holding means for holding the cartridge.                 

For this reason, since the tray is not conveyed in a state tilted to one side at the time of loading and ejecting due to the load of opening and closing the shutter of the cartridge held by the cartridge holding means, it is possible to improve the operation of the tray, for example, the tray. Can be.

In the above configuration, the opening and closing means is provided in the tray.

For this reason, even in the loading mechanism which opens when the shutter of a cartridge is attached, or the loading mechanism which opens and closes a shutter in synchronism with the operation | movement of a tray, operation and operation reliably without generating the up, down, left, and right bulging of a tray. It becomes possible.

In the above configuration, the holding means includes a shaft provided in the front and rear direction on the tray and a shaft bearing provided on the apparatus main body.

For this reason, because of its simple configuration, it is possible to improve the quality by preventing operation of the cartridge mounting on the tray, the tray loading in the loading and ejecting operation of the cartridge, and at the same time, it also regulates the position of the cartridge width in loading. It is possible to increase the reliability of the loading mechanism. In addition, the configuration of the shaft inside the tray also has the advantage that the drive device can be made thinner and smaller.

In the above configuration, the holding means has a shaft provided in the apparatus body in the front-rear direction and a shaft bearing provided in the tray.

For this reason, it is possible to improve the quality by preventing operation of the cartridge mounting on the tray, and to prevent the rattling of the tray during loading and ejecting of the cartridge, and at the same time to regulate the position of the cartridge in the width direction during loading. It became possible to raise. Further, by providing the guide shaft in the mechanism device body, the thickness of the tray is not limited.

In the above configuration, the cartridge holding means has a cartridge holding means which detachably couples with the to-be-engaged portion provided in the cartridge and regulates the movement of the cartridge in or out of the tray relative to the tray.

For this reason, the cartridge holding means prevents the drop of the cartridge from the tray, and makes it possible to roughly align the center of the spindle motor and the center of the disk for rotating the disk accommodated in the cartridge. Therefore, the wall surface for holding a conventional cartridge can be made unnecessary, and the attachment or detachment of a single disc or a cartridge can be made easy.

In the above configuration, the front end of the tray in the carrying-in / out direction does not have a wall surface perpendicular to the cartridge mounting surface.

For this reason, the cartridge can be detached from the front of the tray, and the cartridge and the single disc can be mounted in a tray having a high degree of freedom.

In the above configuration, the drive means has a configuration in which the drive operation is started by manually pushing the tray into the apparatus body in a carrying out state, and the force for coupling the cartridge to the cartridge holding means causes the tray to be moved inside the apparatus body. Is less than the force to insert it manually.

For this reason, it becomes possible to avoid the erroneous operation which performs the manual insertion operation | movement of the tray to a disk apparatus before mounting a cartridge to a cartridge holding means.

In the above configuration, the cartridge holding means has a structure that elastically engages the engaged portion of the cartridge, the tray is provided with a stopper at the end in the carrying-in direction of the cartridge, and the cartridge is regulated by the stopper when the cartridge is mounted on the tray. The position at which the mounting limit of and the position at which the cartridge has completed the engagement with the cartridge holding means is almost identical.

For this reason, the batch processing can be performed only by mounting, holding and positioning of the cartridge by the pushing operation in front of the cartridge. In addition, the loading driving of the tray may also enable batch processing by the pushing operation in front of the cartridge.

In the above configuration, the cartridge holding means is provided in the tray so as to be immersed in the recessed engaging portion of the cartridge.

For this reason, it is possible to confirm the completion of the maintenance of the cartridge by the change of the operation force when the cartridge is held by the cartridge holding means.

In the above configuration, the to-be-engaged portion is located at both the left and right sides of the loading or unloading direction axis passing through the center of the cartridge.

For this reason, since both sides of a cartridge are hold | maintained, it becomes possible to ensure maintenance of a cartridge.

In the above configuration, the to-be-engaged portion is located on one or both of the left and right sides of the loading or unloading direction axis passing through the center of the tray.

For this reason, it becomes possible to hold a cartridge in a cartridge holding means with little insertion force.

In the above configuration, the tray has a guide member for restricting the movement of the cartridge in the vertical direction with respect to the loading or unloading direction thereof.                 

For this reason, it becomes possible to reliably perform the operation | movement which hold | maintains to a cartridge holding means by restricting a cartridge to a guide member.

In the above configuration, when the engaging portion of the cartridge holding means is close to engaging the cartridge and is in a non-engaged state, openings and cartridge holding means for loading and unloading the tray on the front of the apparatus main body are provided so that the tray is not carried in the apparatus main body. To interfere.

For this reason, it becomes possible to avoid the misoperation regarding the mounting of the cartridge on the tray.

In the above configuration, the cartridge holding means has, on the tray, a holding member having a rotating shaft that rotates in a direction perpendicular to the loading and unloading directions of the tray, and having a holding portion that is axially supported by the rotating shaft and engaged with the engaged portion. The preload is applied in the direction in which the engaging portion of the cartridge holding member engages the engaged portion of the cartridge.

For this reason, the cartridge holding means can be realized with a small number of parts.

In the above configuration, the cartridge holding means has an elastic member elastically deformed in the vertical direction with respect to the loading and unloading direction of the tray, and the plastic member is plastically deformed into a protrusion shape in which the tip of the elastic member is immersed in the concave engaging portion of the cartridge. Or, the protruding coupling member is integrally formed with the elastic member at the tip of the elastic member.

For this reason, the cartridge holding means can be realized with a simpler structure than that of claim 10.

In the above configuration, the engaging portion of the cartridge holding means immersed in the concave engaging portion of the cartridge has a cylindrical or substantially spherical shape rotating along the surface of the cartridge with a rotation axis perpendicular to the loading and unloading direction of the tray. The roller is installed.

For this reason, the frictional force at the time of engaging the engaging portion of the cartridge holding means with the engaged portion of the cartridge is small, and the cartridge can be smoothly mounted with a small insertion force of the cartridge.

The disk device loading method of the present invention is a method for loading a disk device having the above configuration, comprising: a first step of loading a tray on which a cartridge is loaded into a device body by a driving means; and positioning a cartridge carried in the device body. A second process of positioning by the second process, a third process of detecting the state of the cartridge by the state detecting means, a fourth process of holding the disc in cooperation with the disc rotating means and the disc clamp member, and a cartridge pressurizing member And a fifth process of pressurizing the tray by the second process, and after the second process and the third process are performed continuously to the first process, the fourth process and the fifth process are performed.

According to the above arrangement, after the cartridge containing the disk mounted on the tray is loaded into the optical disk apparatus, the positioning operation of the cartridge inserting the positioning member into the cartridge positioning hole, and the detecting operation for detecting various detection holes formed in the cartridge. After this, the disk is held by the disk rotating means and the disk clamp member, and the cartridge pressing operation for pressing the cartridge by the cartridge pressing member is performed, whereby the sliding load due to the pressing on the cartridge at the time of loading the tray is reduced. This eliminates the need for scratching the cartridge surface by the cartridge pressing member, and facilitates positioning. In addition, since the load due to the pressing force can be reduced, smooth conveyance can be realized, a low torque motor can be used, and a low power consumption device can be realized. In addition, since the load is reduced, the life of the driving means can be extended.

In the above arrangement, the disk apparatus detects that the cartridge is placed in the tray at the normal position in the carrying out state of the tray and outputs a detection signal, and inputs the detection signal to operate the drive means. It has a control means which outputs a command.

In the above configuration, the disk apparatus has a detecting member for detecting the arrangement of the normal position on the tray of the cartridge, and the mounting detecting means is responsive to the detecting operation of the detecting member.

In the above configuration, the disk apparatus has a cartridge holding means detachably coupled to the engaged portion of the cartridge, and the cartridge holding means for positioning and fixing the cartridge with respect to the tray, wherein the cartridge holding means also serves as a detection member.

In the above arrangement, the disk apparatus controls the drive means in accordance with a predetermined drive profile that sets a different speed in accordance with the elapsed time between the start of movement of the tray and completion, and the drive means Detecting means for detecting completion of loading and unloading, and calculating means for measuring the loading and unloading time of the disk by the driving means on the basis of the detection result of the detecting means, wherein the control means includes the calculating means. According to the measurement time of at least one of the speed and the elapsed time of the drive profile is changed.

1 is an exploded perspective view of an optical disk apparatus having a cartridge holding mechanism according to a first embodiment of the present invention.

2 is a perspective view of part (a) of the tray, and part (b) is a perspective view of the cartridge holder.

3 is a perspective view before mounting a cartridge to a tray.

4 is a perspective view seen from the back side of the tray.

Fig. 5 is a perspective view of part (a) showing the tray and the clamper, and part (b) is a perspective view of the loading completion state of the tray.

Fig. 6 is a perspective view of the cartridge with the shutter opened and the slide cam as viewed from the back side.

7: (a) part is a top view of a traverse base, and (b) part is a side view.

Fig. 8 is a sectional view of a rubber damper according to a second embodiment of the present invention, and part (b) is a sectional view of its mounting state.

9 is a characteristic diagram of the traverse base vibration with respect to the rotational frequency of the disk and the primary resonant frequency of the damper in the third embodiment.

FIG. 10: is a perspective view which showed the relationship of the slide cam plate, the alignment pin piece, the switch lever, and the loading mechanism in 4th Embodiment, and looked toward the conveyance direction of a tray. FIG.

FIG. 11: is a perspective view which looked at FIG. 10 toward the carrying-in direction of a tray. FIG.                 

FIG. 12 is a perspective view showing the relationship between the switch lever and the state detection switch on the circuit board in FIG.

It is a front view which shows the relationship of a switch lever and an assist arm.

14 is a perspective view thereof.

Fig. 15 is a side view showing the state of the assist arm and the torsion spring when the switch lever is lowered.

16 is an explanatory diagram when the assist arm is raised.

Fig. 17 is a perspective view showing a state where the switch lever is inserted into the detection hole of the cartridge, and the cartridge is lifted from below.

18 is a perspective view seen from above in FIG. 17.

19 is a perspective view of the traverse holder seen from below.

It is a perspective view which shows the structure of a traverse holder and a side arm.

21 is an explanatory view of the cam groove shape of the slide cam plate and the position of the cam floor.

It is explanatory drawing seen from the side which shows the state before a side arm contacts a cartridge.

It is explanatory drawing which shows the state which a side arm contacted the cartridge.

It is explanatory drawing seen from the plane which shows the position which a side arm clamps a cartridge.

25 is a timing chart showing a sequence of loading of the cartridge in the fourth embodiment.

It is explanatory drawing seen from the side which shows the state which the side arm clamped the tray in 5th Embodiment.

Fig. 27 shows a sixth embodiment of the present invention, where part (a) is an external perspective view of an optical disc recording / reproducing apparatus, and part (b) is a perspective view of an ejected state of a tray.

Fig. 28 is a schematic cross-sectional view of part (a) in a loading state, and part (b) is a longitudinal cross-sectional view thereof.

Fig. 29 is a schematic cross-sectional view of part (a) in an ejected state, and part (b) is a longitudinal cross-sectional view thereof.

30 shows a seventh embodiment, in which part (a) is an external perspective view of the optical disc recording / reproducing apparatus, and part (b) is a perspective view of an ejected state of the tray.

Fig. 31 is a schematic cross sectional view in which part (a) is in a loaded state, and part (b) is a longitudinal cross-sectional view thereof.

Fig. 32 is a schematic cross-sectional view of part (a) in an ejected state, and part (b) is a longitudinal cross-sectional view thereof.

Fig. 33 shows an eighth embodiment, where part (a) is an external perspective view of an optical disc recording / reproducing apparatus, and part (b) is a perspective view of an ejected state of a tray.

Fig. 34 is a schematic cross sectional view in which part (a) is in a loaded state, and part (b) is a longitudinal cross-sectional view thereof.

Fig. 35 is a schematic cross-sectional view in which part (a) is an ejected state, and part (b) is a longitudinal cross-sectional view thereof.

Fig. 36 is a perspective view of a state in which the main body upper cover is removed in the carrying-in state of the tray in the ninth embodiment.                 

Fig. 37 is a perspective view of the carrying out state of the tray.

38 is a plan view thereof.

Fig. 39 is a perspective view illustrating detection means for mounting a cartridge.

40 is a partially enlarged view of FIG. 39.

Fig. 41 is a perspective view of the loaded state of the tray.

42 is a perspective view of a state before mounting a cartridge in a tray.

Fig. 43 is a perspective view of a state before the cartridge is partially mounted in the tray and held in the cartridge holder.

44 is a perspective view of a state where the cartridge is held in the cartridge holder.

45 is a plan view of the carrying out state of the tray of the tenth embodiment.

It is explanatory drawing explaining the operation | movement of a cartridge holder and a detection switch.

Fig. 47 is a block diagram of the electric control system in the eleventh embodiment.

Fig. 48 is a waveform diagram of part (a) of the PWM drive voltage, and part (b) is the PWM drive current.

Fig. 49 is a profile of the carry-in operation in which the horizontal axis is the operating time and the vertical axis is the duty (%) of the PWM drive, where (a) is a loading operation within the guaranteed temperature range, and (b) is a loading operation outside the guaranteed temperature range. Indicates.

Fig. 50 is a profile of the export operation in which the horizontal axis is the operating time and the vertical axis is the duty (%) of the PWM drive. The part (a) shows the eject operation within the guaranteed temperature range, and the part (b) shows the eject operation outside the guaranteed temperature range. Indicates.                 

Fig. 51 is a block diagram of a control system in which part (a) changes the profile of the driving means, part (b) is the drive profile at the time of loading the drive process number assigned, and part (c) is the ejection at the time the drive process number is assigned. Drive profile.

It is explanatory drawing which shows the relationship of the guide part and guide groove in 4th Embodiment.

Fig. 53 is a perspective view of a loading completion state of the tray of the fourth embodiment.

Fig. 54 is a perspective view showing the relationship between the slide cam plate, the alignment pin piece, the switch lever, and the loading mechanism, and viewed in the carrying out direction of the tray.

Fig. 55 is a perspective view of Fig. 54 viewed in the carrying-in direction of the tray.

Fig. 56 is a plan view of the carrying out state in the thirteenth embodiment.

Fig. 57 shows the outline of the fourteenth embodiment, part (a) is a schematic plan view, and part (b) is a front view.

Fig. 58 is a perspective view of a tray and a cartridge holder of the third embodiment.

Fig. 59 is a perspective view of a tray and a cartridge holder of the fourth embodiment.

Fig. 60 is a perspective view of a tray and a cartridge holder of the fifth embodiment.

Fig. 61 is a perspective view of a tray and a cartridge holder of the sixth embodiment.

Fig. 62 is a perspective view of an ejected state of a tray of a conventional example.

63 is an exploded perspective view thereof.

64 is a schematic sectional view.

Fig. 65 is a plan view of the ejected state.                 

66 is a partially enlarged cross-sectional view thereof.

67 is a timing chart showing a sequence in the conventional example.

Fig. 68 shows another conventional optical disc recording / reproducing apparatus, in which part (a) is an external perspective view and part (b) is a perspective view of an ejected state.

69 is a perspective view of a carrying out state of another tray of the prior art;

70 is a partial perspective view thereof.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described using drawing.

(Embodiment 1)

The cartridge holding mechanism of the disk apparatus of the first embodiment of the present invention will be described with reference to FIGS. Fig. 1 shows a first embodiment of an optical disc recording and reproducing apparatus of the present invention. In Fig. 1, 140 is a main body of an optical disc recording and reproducing apparatus, 20 is a tray which is a tray for mounting a cartridge and a single optical disc, and 1 is a cartridge; 10 is a disk housed in a cartridge.

(Tray structure)

In the center of the cartridge mounting surface 21 of the tray 20, two large and small concave parts formed concentrically are formed. The large-diameter recesses are prepared by the large-diameter disk mounting section 22 and the small-diameter recesses on the small-diameter disk mounting section 23 in accordance with the outer diameter of a single disk mounted on the main body 140 of the optical disk recording / reproducing apparatus.

The left and right ends of the tray 20 are slightly larger than the external dimensions of the cartridge 1, and the left wall 25 and the right wall 26 are formed perpendicular to the cartridge mounting surface 21, and the cartridge 1 ) Has a function of a guide at the time of mounting on the tray 20.

(Cartridge holder structure)

The opening part 30 is formed in a part of the left wall surface 25 and the right wall surface 26, and the cartridge holder 27 which engages with the recessed part to-be-engaged part 6 of the inside left and right end surfaces of the cartridge 1 is carried out. Is installed.

The cartridge holder 27 is rotatably held about the pin 28 provided on the cartridge mounting surface 21, the hole 27a formed in the middle is fitted to the pin 28, and one side of the cartridge ( For example, it has the convex coupling part 27b which engages with the to-be-engaged part 6 of 1), and the other hold | maintains the to-be-engaged part 6 of the cartridge 1 between the tray 20 and the other. It is pressurized by the coil spring 49 in the direction. Therefore, the left and right are regulated by the left and right wall surfaces 25 and 26 of the cartridge 1, and the front and back are regulated by the cartridge holder 27.

(Shutter opener structure)

On the inner side of the tray 20, an opener 29 for opening and closing the shutter 2 of the cartridge 1 is provided to be movable in the left and right directions. Loading is performed while hanging the shutter opener 24 to the left of the projection at the tip of the shutter 2 and opening it to the left. The shutter opener 24 is guided to a cam provided on the lower surface of the upper base 83, for example, so that the opener 29 moves together with the loading operation of the cartridge 1.

When the shutter 2 is in the released state, the disc 10 accommodated in the cartridge 1 can be rotated by the spindle motor 90 as a disc rotating means and recorded and reproduced by the optical pickup 99. .

(Rack gear structure)

On one side of the rear surface of the tray 20, the rack gear 40 extending in the loading direction of the tray 20, which is coupled to the drive gear 66a of the deceleration loading gear system 66 of the loading motor 81 as a driving means. ) Is installed.

The tray 20 is configured to be loaded and ejected by changing the rotational direction of the loading motor 61. In this case, in the vicinity of the rack gear 40 on the back of the tray, a metal guide shaft 41 is held at the front and rear ends of the tray 20, and the mechanism chassis 60 is used as the device body through the shaft holder 42. Is maintained at). The other side of the tray 20 is slidably supported by the guide end 63 of the mechanism chassis 60, and is provided by the resilient floating prevention portion 209 provided on the side wall of the mechanism chassis 60. Is regulated to float from the guide end 63. In addition, the loading motor 61 and the loading gear system 66 are provided at the front end of the mechanism chassis 60.

(Traverse Base Configuration / Rubber Damper Support)

Spindle motor 90 holding and rotating disk 10, optical pickup 99 for reading information on disk 10 or recording information on disk 10, and optical pickup 99 for radius of disk 10 The traverse base 82 for holding the traverse motor 94 and the lead screw 95 moving in the direction is a rubber damper 71 formed of a rubber material, for example, a damper member. The traverse holder 70 is held. 85 is a fastener for fixing the rubber damper 71, for example, a screw. By being elastically supported by the rubber damper 71, the effect of reducing the influence on the recording / reproducing operation of the disk 10 when vibration or shock from the outside is given to the main body 140 of the optical disk recording / reproducing apparatus is provided. Have.

(Traverse Holder Support Structure)

The rear side of the traverse holder 82 is rotatably supported with respect to the bearing 67 of the mechanism chassis 60 by the shaft 84, and the front side of the traverse holder 82 is the slide cam 100 described later. For example, it has a projection 183, which is a cam floor that engages with the projection, and the projection 183 engages with the inclined cam groove 109 of the slide cam 100, and traverses by the left and right movement of the slide cam 100. The holder 82 is structured to be driven up and down.

(Alignment pin / cartridge state detection switch structure)

After the loading of the cartridge 1 mounted on the tray 20 is completed, the alignment pin 102 passes through the hole 20a of the tray 20 to engage with the positioning hole 3, and the state detection hole 4 of the cartridge. ) Is provided in the vicinity of the loading motor 61 on the front side of the mechanism chassis 60.

The alignment pin 102 has a cam follower, for example, a protrusion on the body 102A, and a housing 102a that is slidably fitted to a support (not shown) installed on the mechanism chassis 60 to be slidably. Has Similarly to the traverse holder 70, the cam follower is coupled to the cam groove 109 of the slide cam 100 at a position apart from the protrusion 183, and the alignment pin 102 is moved up and down by the left and right movement of the slide cam 100. The detection lever 106 is driven up and down by an assist shim 104 which is axially supported by the mechanism chassis 60 and rotates by the left and right movement of the slide cam 100.

The alignment pin 102 engages with the positioning holes 3 of the cartridge 1 after the loading is completed, thereby maintaining the clearance of the disk 10 and the cartridge 1 held in the spindle motor 90, and the cartridge 1 ) Has a function of positioning at a position not in contact with the disk 10.

The detection switch 105 is provided on the circuit board 85 of the control circuit attached to the lower surface of the mechanism chassis 60 and determines the engagement state with the detection hole 4 of the cartridge 1 through the detection lever 106. Thus, it has a function of detecting whether the recording of the disk 10 accommodated in the cartridge 1, the front and back of the disk 10, and the recording capacity of the disk 10 are detected.

(Upper base structure)

The mechanism chassis 60 is provided with an upper base 83 as an upper cover. The upper base 83 includes a clamper 84 that fixes the disk 10 to the spindle motor 90, and a clamp arm 73 that detachably holds the clamper 84 in the up and down direction with respect to the spindle motor 90. The cam groove which regulates the movement of the opener 29 which opens and closes the shutter 2 of the cartridge 1 is formed. The clamp arm 73 is provided with a clamper 84 at the tip, attaches the intermediate portion 76 to the upper base 83, and moves the clamper 84 away from the spindle motor 90 by spring tension. It pressurizes and the support part 73a is provided in the rear end. When the loading of the tray 20 is completed, the supporting portion 73 is pressed by the pressing portion formed, for example, the protrusion 130, on the rear end of the tray 20, whereby the clamper 84 approaches the spindle motor 90. I'm going to let you.

(Side arm structure)

In addition, the left and right side surfaces of the mechanism chassis 60 are provided with side arms 143 for regulating the vibration of the cartridge 1 after loading and side arm springs 143a for pressing the side arms 143 to the cartridge 1. It is. The side arm 143 is axially supported by the shaft 78, the rear end is coupled to the lower surface side of the traverse holder 70 by the side arm spring 143a, and the upper side of the cartridge 1 to which the front end loads. Located. When the traverse holder 70 is raised according to the loading of the tray 20, the side arm 143 presses the cartridge 1 to the tray 20 by the side arm spring 143a and the mechanism of the tray 20. Pressurizes to the chassis 60, eliminates rattling occurring between the cartridge 1, the tray 20, and the mechanism chassis 60, and reduces vibration and noise generated when the disk 10 rotates. Have The tray 20 is fixed to the mechanism chassis 60 by the side arms 143 after the loading of the tray 20 is completed, thereby reducing the load on the loading motor 61 when the tray 20 is loaded.

(Clamper structure)

When the disk 10 is mounted on the spindle motor 90, the clamp 10 is used to fix the disk 10 to the turntable 91.

The clamper 84 is comprised by the member which can be divided into two upper and lower sides, and the magnet (not shown) is built in the inside. In addition, in order to center the disk 10 with respect to the turntable 91, a magnetic material (not shown) is embedded in the top of the center cone formed at the center. With the magnetic attraction force of the magnet and magnetic material embedded in the clamper 84, the clamper 84 fixes the disk 10 to the turntable 91.

(Traverse Drive Structure)

The optical pick-up 99 is two metal shafts called the main shaft 97 and the sub-axis 98 provided in the traverse base 80, and is hold | maintained so that the disk 10 is movable in the radial direction.

In the vicinity of the main shaft 97, a lead screw 95 directly connected to the traverse motor 94 is provided. The optical pickup 99 is provided with a nut piece 96 coupled to the lead screw 95. When the traverse motor 94 rotates, the optical pickup 99 is provided through the nut piece 96 coupled to the lead screw 95. ), The driving force in the radial direction of the disk 10 is generated, and high speed movement is made possible at the target radial position of the disk 10.

(Slide cam structure)

A partition wall 178 partitioning the front side of the traverse holder 82 and the loading motor 61 is installed on the mechanism chassis 60, and the slide cam 100 is installed on the partition wall 178 so as to be movable in the horizontal direction. It is.

The front side of the slide cam 100 has a rack gear 101 and is driven left and right by the intermediate gear 65 of the loading gear system 66. The cam follower provided in the end of the slide cam 100, for example, the projection 100a is guided by the rod cam 249 provided in the back surface of the tray 20. As shown in FIG. The rod cam 249 extends in the front-rear direction of the tray 20, that is, in parallel with the rack gear 40, and the inclined portion 249a inclined at about 45 degrees from the front end side of the tray 20 extends, and the tray ( The extension part 249b is extended perpendicular to the front-back direction of 20). Accordingly, the drive gear 66a drives the rack 40 by the operation of the loading motor 61 and the loading gear system 66 so that the tray 20 is loaded, and the protrusion 100a is inclined near the loading completion. When it is moved to 249a, the slide cam 100 starts to move, and the intermediate gear 65 and the rack gear 101 of the loading gear system 66 mesh with each other, and then the rack 40 and the drive gear 66a. Is disengaged, and gear shift is performed in this way. When the projection 100a of the slide cam 100 moves to the extension part 249b, loading of the tray 20 is stopped and only the slide cam 100 is moved by the intermediate gear 65. The ejection operation of the tray 20 is the reverse operation.

By moving the slide cam 100 side to side, the traverse holder 82, the alignment pin 102, and the detection lever 106 are driven to an up-down direction as mentioned above.

The operation of the main body 140 of the optical disc recording / reproducing apparatus configured as described above will be described taking the case of reproducing the disc 10 stored in the cartridge 1 as an example.

(The cartridge deployment)

When the cartridge 1 is mounted on the tray 20, the cartridge 1 is moved in the direction of pushing the cartridge 1 from the front of the tray 20 onto the cartridge mounting surface 21 in the optical disc recording / reproducing apparatus. Make it slip.

While the left and right end surfaces of the cartridge 1 are pushed into the tray 20 using the left wall surface 25 and the right wall surface 26 as guides, the inclined surface is formed in the tip shape of the engaging portion 27b of the cartridge holder 27. In this case, the cartridge 1 is easily released by the insertion force of the cartridge 1. When the cartridge 1 is further inserted, the engaging portion 27b of the cartridge holder 27 engages with the engaged portion 6 of the cartridge 1 by the pressing force of the coil spring 49.

The operator can recognize that the coupling is completed by the change in the insertion force and the sound generated when the cartridge holder 27 is engaged.

On the inner side of the cartridge mounting surface 21, a stopper 28a for regulating the insertion limit of the cartridge 1 is provided, and the coupling position between the cartridge 1 and the cartridge holder 47 and the stopper 28a are provided. The insertion limit is almost identical.

This completes the mounting of the cartridge 1 on the tray 20.

At this time, the cartridge 1 is controlled by the cartridge holder 27 in the front-rear direction, the left wall surface 25, and the right wall surface 26 to move in the left-right direction.

(Manual loading operation)

Subsequently, when the insertion force is continuously applied to the cartridge 1, the insertion force is transmitted to the tray 20 through the stopper 28a, and the tray 20 performs manual loading by the optical disc recording / reproducing apparatus 140. Will be disclosed.

While the tray 20 is being manually loaded, a signal of passing through the tray is detected by the eject end switch (not shown) of the tray, and a driving voltage is given to the loading motor 61, and driven by the rotation of the loading motor 61. The automatic loading operation of the tray 20 is started by the rotation of the drive gear 66.

At this time, when the magnitude of the insertion force of the cartridge 1 into the cartridge holder 27 and the manual loading force of the tray 20 are compared,

(Cartridge insertion force) <(manual loading force)

By setting the spring constant and the preload pressure of the coil spring 49 that presses the cartridge holder 27 so that the relationship is established, the tray 20 is manually inserted after the mounting of the cartridge 1 on the tray 20 is completed. The loading by is performed.

If the force relationship is reversed, the loading of the tray 20 is started before the insertion of the cartridge 1 into the cartridge holder 27 is completed, and the clamp miss of the disk 10 accommodated in the cartridge 1 Occurs.

(Auto loading operation)

When the mounting of the cartridge 1 on the tray 20 is completed, by turning the loading switch (not shown) of the main body 140 of the optical disc recording / reproducing apparatus ON, a driving voltage is given to the loading motor 61, and the loading is performed. By the rotation of the drive gear 66 which follows the rotation of the motor 61, the tray 20 starts an automatic loading operation.

In the loading operation of the tray 20, the shutter 2 of the cartridge 1 is released by the action of the shutter opener 29, and the recording and reproducing of the recording surface of the optical disc 10 contained in the cartridge 1 is possible. do.

(Traverse holder driven)

Immediately before completion of the loading operation of the tray 20, the slide cam 100 is driven to the left by a rod cam 249 provided on the back of the tray. By the movement of the slide cam 100, the traverse holder 70 which engages with the cam groove 109 of the slide cam 100 gradually moves from the lowest position to the highest position.

The traverse base 82 elastically supported by the rubber damper 71 on the traverse holder 70 simultaneously moves to the uppermost position where the optical disk after completion of loading is clamped by the clamper 84.

When the movement of the slide cam 100 is completed, the clamp of the optical disk is also completed, and the rotation of the optical disk by the spindle motor 90 starts.

(Implementation of cartridge)

Next, the operation of the cartridge holder 27 in the case of the irregular mounting in which the front and rear of the cartridge 1 is mounted in the tray 20 in the reverse direction will be described with reference to FIG. 3.

As in the case of the normal operation, the cartridge 1 is slid in the direction of pushing the cartridge mounting surface 21 onto the optical disk recording / reproducing device 140 in front of the tray 20.

While the left and right end surfaces of the cartridge 1 are pushed into the tray 20 using the left wall surface 25 and the right wall surface 26 as guides, the distal end of the engaging portion 27b of the cartridge holder 27 is a cartridge ( It is easily released by the insertion force of 1). When the cartridge 1 is further inserted, since the engaging portion 27b of the cartridge holder 27 has no engaged portion 6 of the cartridge 1, it is along the left and right ends of the cartridge 1 in the released state. Slide down Even when the cartridge 1 reaches the position of the stopper 28a for regulating the insertion limit, the cartridge holder 47 remains in the released state.

When the loading switch is turned on in a state where the cartridge 1 is irregularly mounted on the tray 20, the tray 20 is loaded into the optical disc recording / reproducing apparatus 140. However, during the loading of the tray 20, since the cartridge holder 27 is opened outward from the left and right end surfaces of the tray in the released state, the mechanism chassis for passing the tray 20 of the optical disc recording / reproducing apparatus 140 is passed. Since the release state of the cartridge holder 47 is wider in the width direction than the width of the opening 60a of the 60, the engaging portion 27b of the cartridge holder 27 and the opening 60a interfere with each other. The loading operation of 20 is stopped on the way.

The loading motor 61 detects a sudden increase in the driving load caused by the interference of the cartridge holder 27 and the opening 60a, stops the loading operation of the tray 20, and then the loading motor 61 is reversed. Rotation is replaced by the eject operation of the tray 20.

In this way, the operator recognizes the irregular mounting of the cartridge 1 because the cartridge 1 which has been loaded and loaded on the tray 20 has been unexpectedly ejected.

According to this embodiment, when vibration or shock is applied from the outside of the optical disc recording / reproducing apparatus during the rotation of the optical disc, the cartridge itself held on the apparatus itself and the apparatus side vibrates, but the traverse base supported by the rubber damper 71 Vibration and shock are suppressed on the optical disk 99 and the optical disk fixed to the turntable 91 of the spindle motor 90 and the optical head 99 formed on the traverse base 82, and the influence on the recording / reproducing operation is greatly reduced. .

In addition, since the mechanism supported by the rubber damper 71 in the optical disc recording and reproducing apparatus is limited to the traverse base 82, the configuration of the apparatus is simplified, and the apparatus can be made smaller and lighter.

In addition, the drive load is reduced when the cartridge 1 is loaded into the device by pressing the cartridge 1 into the tray 20 by the side arm 143 and then fixing the cartridge 1 to the tray 20 after the cartridge 1 is loaded into the device. This becomes possible. Further, the driving load can also be reduced by reducing the weight of the traverse base 82 by reducing the size of the traverse base 82 or by reducing the weight of the traverse base by using the alignment pin, the detection switch, the detection arm, and the like separately from the traverse base as described above.

(Embodiment 2)

The second embodiment of the present invention will be described with reference to FIG. This relates to the attachment of the rubber damper in the first embodiment. An almost circular hole 300 is formed in the four corners of the traverse base 82, and is mounted in a portion 71a in which a cylindrical dampened rubber damper 71 is formed.

The through-hole 71b is formed in the up-and-down direction of the rubber damper 71, and the cylindrical boss 70a installed in the traverse holder 70 in the through-hole 71b is inserted, for example, and is formed in the upper end of the boss. A fixing method is adopted to prevent the rubber damper 71 from falling off with the set screw 85 in the screw hole 70b.

At this time, the distance between the holes of each hole 300 of the traverse base 82 and the traverse holder 70 are applied to the rubber damper 71 so that the preload is pressed in a direction parallel to the surface of the traverse base 82. The predetermined position shift H is formed in the boss-to-boss distance of the boss 70a.

By this position shift H, the rubber damper 71 is provided with a horizontal load in addition to the vertical load due to the self-weight of the traverse base 82, and is caused by the loading or ejecting operation of the cartridge 1. By changing the attitude of the traverse base 82 and the traverse holder 70 by the vertical movement, it is possible to reduce the deviation of the positioning reproducibility of the traverse base 82.

Moreover, even when the distance between the holes of each hole 300 of the traverse base 82 and the distance between the bosses of the boss 70a of the traverse holder 70 are the same, the rubber damper attachment hole 300 of the traverse base 82 is the same. The outer diameter of the concave portion 71a of the rubber damper 71 is made large with respect to the hole diameter of the rubber damper 71, and the boss 70a of the traverse holder 70 with respect to the hole diameter of the through hole 21b of the rubber damper 71. By forming a larger outer diameter of the c), the rubber damper 71 generates a load in the horizontal direction, thereby making it possible to reduce the deviation of the positioning reproducibility of the traverse base 82.

In this way, upon completion of the tray 20 into the disk apparatus, the pressure in the radial direction of the disk is applied to the damper member, and the traverse base 82 is elastically held relative to the chassis 60.

(Embodiment 3)

A third embodiment of the present invention will be described with reference to FIG. The resonance frequency of the rubber damper according to the first embodiment is set. Rubber damper is a material that has both spring and vibration absorption and must have a primary resonant frequency. As the soft rubber material having high vibration absorption performance is adopted, the primary resonance frequency is lowered, and the frequency is set to a frequency close to the rotation frequency of the optical disk.                 

However, the optical disc has a process of forming thin discs with resin and sticking them together, and a discrepancy in the thickness of the discs and a center misalignment caused by bonding occur necessarily, so that the rotational center and the center of the optical disc do not coincide. This misalignment is called the eccentricity of the optical disc. Since the optical disc rotates at high speed, the eccentricity is defined according to the standard, but it is impossible to manage the eccentricity as O, and when the optical disc having the eccentricity is rotated, a shake rotation vibration occurs, and the reversal causes the traverse base ( 82 also occurs.

When the optical disc recording / reproducing apparatus spins up, the amplitude of the shaking rotation vibration increases due to the increase of the rotation frequency of the optical disc, but its amplitude is maximized at the first resonance frequency of the rubber damper 71 supporting the traverse base 82. do.

In the recording / reproducing apparatus of the optical disc which does not correspond to the cartridge, when the optical disc of a single uniaxial center is rotated, in order to avoid deterioration of recording and reproduction due to the shaking rotation vibration at the target rotational speed, rubber is generally used. The primary resonant frequency of the damper is set to a value lower than the rotation frequency of the optical disc.

Further, in the optical disc recording and reproducing apparatus for recording and reproducing the optical disc included in the conventional cartridge, even if the optical disk is eccentric and the shake rotation oscillation occurs, the optical disc and the cartridge vibrate integrally, so that the optical disc and the cartridge come into contact with each other. Did not happen.

However, in the optical disc recording and reproducing apparatus of the present invention, in the case where the eccentric center of the optical disc contained in the cartridge is large, there is a possibility that the optical disc and the cartridge 1 come into contact when the amplitude of the shake rotation vibration is maximized during the spin up operation. As a result, as shown in Fig. 9, the primary resonant frequency B of the rubber damper is set at least higher than the maximum rotational frequency A of the optical disc to avoid contact between the optical disc and the cartridge during the spin up. did.

In the present invention, the damper member is configured to enable the traverse base 82 to rotate, and the rear end of the traverse base 82 is directly attached to the mechanism chassis 60 through the damper member, thereby traversing the base 82. You may make it drive up-and-down the front end side of).

(Embodiment 4)

A fourth embodiment of the present invention is shown in Figs. 1 to 6, 10 to 25 and 52 to 55. Fig. 1 is a perspective view showing an optical disc recording and reproducing apparatus according to the first embodiment of the present invention, and Fig. 25 shows the flow of a sequence until the cartridge is loaded into the optical disc recording and reproducing apparatus and the disc is rotated.

An optical disc recording and reproducing apparatus according to the present invention will be described with reference to FIG. 140 is a device body of an optical disc recording / reproducing apparatus, and is broadly divided into a loading mechanism 190, a traverse mechanism 191, a mechanism chassis 60, a tray 20, and a disc clamp mechanism 192.

25 shows a timing chart of the cartridge loading sequence of the optical disc recording / reproducing apparatus of the present invention.

Reference numeral 120 denotes a cartridge loading operation for mounting the cartridge 1 in the tray 20. As the following operation, 121 denotes a tray pushing operation for pushing the tray 20 into the optical disc recording / reproducing apparatus main body 140, and 122 denotes a load eject switch operation for pressing a load eject switch (not shown). By this means, the trigger for starting loading of the tray 20 is set.

After the selection of either the tray pushing operation 121 or the load eject switch operation 122, the loading operation of the tray 20 of 123 is started.

In parallel with the loading operation 123, a shutter opening operation for opening the shutter 2 of the cartridge 1 of 124 is performed, and at the end of the loading operation 123, the shutter opening operation 124 of the cartridge 1 is completed. Also, the preparation for clamping the disk included in the cartridge 1 to the spindle motor 90 is completed. That is, the clamper 84 provided in the clamp arm 73 which engages with the protrusion 130 formed in the tray 20 of 125 from just before the end of the loading operation 123 to the end of the loading operation 123 is a cartridge ( The clamp preparation work positioned for 1) is completed.

126 denotes a cartridge positioning operation in which the alignment pin 102 is inserted into the positioning hole 3 formed in the cartridge 1, so that positioning of the cartridge 1 with respect to the tray 20 is completed. At this time, the cartridge positioning assistance operation of 131 is performed.

127 enters a state detection lever 106 into a state detection hole 4 of the cartridge 1 and a state detection lever 106 that engages with a state detection switch 105 provided in the circuit board 85. A state detection operation for detecting the state of the disk in the system is shown.

Thereafter, the side arm 143 presses the cartridge 1 as 128 to eliminate the rattling of the cartridge 1 by the cartridge fixing operation that is pressed and fixed to the tray 20.

Reference numeral 129 denotes a disk clamping operation in which the spindle motor 90 penetrates into the center hole of the disk to clamp the disk 10 together with the clamper 84.

Reference numeral 130 denotes a recording / reproducing operation in which the spindle motor 90 rotates the disk and the recording or reading of the recording is performed by the action of the optical pickup 99.

The sequence of the cartridge ejection of the optical disc recording / reproducing apparatus of the present invention is omitted because the sequence is generated in the reverse order of the cartridge loading sequence.

Next, the mechanism part for performing each operation demonstrated by FIG. 25 is demonstrated.

First, as shown in Fig. 2, the cartridge mounting operation 120 fits the central hole 27a of the cartridge holder 27, which is the cartridge holding means, to the shafts 28 provided on both sides of the tray 20. , The engaging portion 27b at the tip is pressed inward by, for example, a spring 49 using a coil spring, and the engaging portion 27b of the cartridge 1 is engaged (6, etc.). In this manner, the cartridge 1 is held by the pair of cartridge holders 27. 21 is a cartridge mounting surface, 22 and 23 are recesses for mounting a single disc, 25 and 26 are both sidewalls, 29 is a shutter opener, and 30 is a slit for entering a part of the cartridge holder 27.

Next, although the loading operation 123 based on the operations 121 and 122 of the tray 20, this is due to the action of the rack and pinion in the loading mechanism 190, and the loading mechanism 190 is a mechanism chassis ( It is provided inside the opening part 60a which carries in and unloads the tray 20 of 60, and has the loading motor 61 and the loading gear system 66. As shown in FIG. On the other hand, as shown in FIG. 4, the rack 40 which engages with the drive gear (output pinion) 66a of the loading gear system 66 is provided in the carrying in / out direction on one side of the back surface of the tray 20. As shown in FIG. In addition, 41 is a metal shaft installed in parallel with the rack 40, 42 is fixed to the mechanism chassis 60 by a holder for receiving the shaft 41. As a result, one side of the tray 20 is installed in the mechanism chassis 60 so as to be movable in the carry-in / out direction, while the other side is slidably supported by the guide end 63 of the mechanism chassis 60, and the mechanism chassis ( Injury of the other side of the tray 20 is prevented by the elastic anti-floating portion 209 protruding from 60. The carrying out position of the tray 20 with respect to the mechanism chassis 60 is regulated to a position where the cartridge 1 can be attached and detached to the tray 20, and the carrying position of the tray 20 is determined by the disc of the cartridge 1 It is regulated to the position driven by the spindle motor 90.

The shutter opening operation 124 opens the shutter 2 provided in the cartridge 1, and the opener 29 and the opener 29 which are installed in the tray 20 so as to be movable in a direction perpendicular to the carry-in / out direction. For example, a cam guide (not shown) of a groove type which moves in association with the loading operation of the tray 20 is provided, and the cam guide is provided on the back surface of the upper base 83. In the state where the tray 20 is taken out, the opener 29 is moved to the position for opening the shutter 2 by the cam guide, and the cartridge 1 is mounted on the tray 20 and held in the cartridge holder 27. When the tray 20 starts loading from the fixed state, the opener 29 moves along the cam guide in a direction perpendicular to the carry-in direction, so that the protrusions of the opener 29 engage with the protruding end of the tip of the shutter 20. Then, the shutter 2 starts to open in response to the spring force of the closing spring pressed in the closing direction, and is completely opened before the loading is completed. Opening of the shutter 2 makes it possible to couple the spindle motor 90 to the disc in the cartridge 1 and to contact the optical pickup 99. On the other hand, the opener 29 moves in the opposite direction as described above, and the shutter 2 moves in the closing direction by the closing spring according to the carrying out operation of the tray 20.

The clamp preparation work 125 is performed by the disk clamp mechanism 192 which works together with the movement in the vicinity of the carrying position of the tray 20. The disk clamp mechanism 192 is attached to the upper base 83, as shown in FIG. 1, and clamp clamp spring 76 for supporting the clamp arm 73, the intermediate portion of the clamp arm 73, It consists of the clamper 84 formed in the one end of the clamp arm 73, and located in the through-hole 83a formed in the upper base 83. As shown in FIG. The clamper 84 is configured to fix the disk 2 to the turntable 91 by the clamper 84 when the disk 10 is mounted on the spindle motor 90. The clamper 84 is comprised by the member which can be divided | segmented into two upper and lower sides, and contains the magnet inside. In addition, in order to center the disk 10 with respect to the turntable 91, a magnetic material is filled in the top part of the center cone comprised in the center. With the magnetic attraction force of the magnet and magnetic material embedded in the clamper 84, the clamper 84 fixes the disk 10 to the turntable 91.

The clamper 84 is pressurized by the clamping pressure spring 76 to rise to the upper surface side of the upper base 83, and is caught by the stopper 83b provided in the through hole 83a. On the other hand, the through-hole 83c is formed facing the other end of the clamp arm 73, and the other end of the clamp arm 73 is bent so that it may protrude toward the back surface side of the upper base 83, and it is set as the support part 73a.

Part (a) of FIG. 5 shows the relationship between the clamp mechanism 192 and the tray 20, and the upper base 83 is omitted, but the mechanism chassis 60 is shown in part (b) of FIG. The protrusion 130 stands on the inner right side of the tray 20. When the tray 20 slides inside the apparatus, that is, in the direction of arrow A, and the loading of the tray 20 is near completion, the protrusion 130 contacts the support 73a of the clamp arm 73. The clamp arm 73 is always pressed against the intermediate point portion so that the supporting portion 73a is lowered by the action of the clamp pressing spring 76. However, by contact with the projection 130 on the tray 20, the supporting portion 73a of the clamp arm 73 rises, rotates around the point portion in the direction of the arrow B, and moves to the hole in the front end portion of the clamp arm 73. The clamper 84, which is rotatably attached, descends to the center of the disk in the cartridge 1 in which the shutter 2 is opened. However, in this state, since the traverse holder 70 mentioned later is not raised, chucking of a disk is not performed and the clamper 84 will be in a standby state.

Next, the cartridge positioning operation 126 in which the alignment pin 102 is inserted into the positioning hole 3 of the cartridge 1 will be described with reference to FIGS. 6 and 10 to 12.

The alignment pin piece 102A having the alignment pin 102 facing perpendicular to the cartridge 1 is approximately Z configured on the slide cam 100 whose pair of projections (cam floors) 108 on its side are cam members. A pair of cylindrical penetrating portions 102a of a cross-section pentagon, which are slidably coupled to the female cam groove 109 and installed in the same direction as the protrusion direction of the alignment pin 102, stand on the mechanism chassis 60. For example, it can move in a C direction by slidably fitting to the columnar processus | protrusion (not shown) which cross section makes cross shape.

Here, the slide cam 100 is carried in and out of the tray 20 in order to partition the loading motor 61, the loading gear system 66, the traverse holder 70, and the like installed in the mechanism chassis 60. It is slidably coupled along the partition plate 178 extending in the direction perpendicular to the direction (Fig. 1). The cam sliding part 100a protrudes in the one end of the slide cam 100, and the groove-shaped rod cam formed in parallel with the rack 40 of the back surface of the tray 20, and formed in the vicinity of the side part on the opposite side to the rack 40 ( The cam sliding part 100a is slidably coupled to 249. Since the rod cam 249 moves the slide cam 100 slightly in the vicinity of the carry-in position where the carry-in of the tray 20 is complete | finished, it has the inclined part 249a which inclines about 45 degrees, and also the inclined part 249a. ), The extension part 249b which guides the cam sliding part 100a to the direction orthogonal to the moving direction of the tray 20 is provided. The slide cam 100 is provided with the rack 110 at a position opposite to the loading gear system 66, and the rack 110 is loaded with the cam sliding portion 100a by moving the inclined portion 249a. The intermediate gear 65 on the one motor 61 side is engaged with the drive gear 66a of the system 66. After the intermediate gear 65 is engaged, the rack 40 and the drive gear 66a are released, whereby the gear is exchanged. Therefore, the tray 20 is not driven by the drive gear 66a, but stops after the cam sliding portion 100a moves slightly by the slide cam 100 while the inclined portion 249a moves. As the motor 61 rotates even after the tray 20 is loaded, the slide cam 100 moves in a direction perpendicular to the moving direction of the tray 20 so that the cam sliding portion 100a moves to the extension portion 249b. do. By the movement of the slide cam 100, the protrusion 108 rises along the cam groove 109, and the alignment pin 102 raises. In the case of moving in the opposite direction, this reverse operation is performed.

10 and 11, even after the introduction of the tray 20 is completed, the loading motor 61 continues to rotate, and the rack 110 of the slide cam 100 in the loading gear system 66 is rotated. The driving intermediate gear 65 moves the slide cam 100 in the D direction. For this reason, the alignment pin 102 raises toward the positioning hole 3 of the cartridge 1 on the tray 20 after the tray 20 is introduced. Then, after passing through the through-hole 20a of the tray 20, the positioning with respect to the direction parallel to the disk surface in the cartridge 1 is completed by engaging with the positioning hole 3 of the cartridge 1. In addition, the detail of the slide cam 100 and the alignment pin piece 102A is mentioned later. In addition, the rotation of the loading motor 61 is carried out via the pulley 62 or the intermediate gear 65 of the loading gear system 66, and then the drive gear 66 of the final stage is a tray 20 not shown here. The tray 20 moves to drive the rack 40.

In this way, the alignment pin 102 is engaged with the positioning hole 3 of the cartridge 1 after the loading is completed, as shown in part (b) of FIG. 5, thereby retaining the disk 10 held by the spindle motor 90. ) And the cartridge 1, and the cartridge 1 has a function of positioning at a position where the cartridge 1 is not in contact with the disk 10.

The mechanism chassis 60 is rotatably provided with an assist arm 104 that assists in raising the alignment pin 102. The assist arm 104 is driven through the cam plate 119 provided on the alignment pin 102 by the left and right movement of the slide cam 100. The assist arm 104 provides a force to assist in raising the alignment pin 102 from below the alignment pin 102 upon loading. When the position of the cartridge 1 is displaced with respect to the tray 20, the displacement of the cartridge 1 is corrected by forcibly inserting the alignment pin 102 into the positioning hole 3 of the cartridge 1. However, when the amount of displacement is large, the assist arm 104 has a positioning hole so that even if the insertion force is insufficient and the alignment pin 102 deforms, it is sufficient to correct the displacement of the cartridge 1. The insertion force is assisted only when the alignment pin 102 of (3) is inserted. It also has a function of releasing assistance just before the ascent is completed. In addition to the above functions, the assist arm 104 has a function of restricting the movement of the detection lever 106 in the direction of the cartridge 1 after the detection lever 106 is separated from the state detection hole 4 of the cartridge. Have

Next, the detection of the state detection hole 4 of the cartridge 1, that is, the state detection operation 126 in FIG. 25 will be described with reference to FIGS.

12 is a view for explaining the movement of the pair of state detection levers 106 inserted into the state detection holes 4 of the cartridge 1, and FIGS. 13 and 14 show the state detection levers 106 having the torsion spring 111. FIG. 15 and 16 illustrate a state in which the assist arm 104 is rotated, and FIGS. 17 and 18 show the state detection lever 106 detecting the state of the cartridge 1. It is a figure explaining the state which detects the presence or absence of the hole 4. In both of the drawings, the mechanism chassis 60 is omitted for ease of explanation. In the DVD-RAM cartridge 1, the state detection lever 106a corresponds to an active side detection hole, and the state detection lever 106b corresponds to a recording prohibition detection hole.

In FIG. 13, although not shown, the alignment pin 102 is not inserted into the positioning hole 3 of the cartridge 1 yet. At this time, the protrusion 112 inside the slide cam 100 is in contact with the F portion of the assist arm 104. The assist arm 104 is a structure which can rotate about the rotation shaft 113, and this rotation shaft 113 is rotatably held by the rotation shaft holding part of the mechanism chassis 60 which is not shown in figure. In this state, the posture is maintained and the rise of the state detection lever 106 is suppressed. At this time, as shown in FIG. 14, the tip portion 114 of the assist arm 104 is rotated in the H direction, and the pair of state detection levers 106 act to hinder the upward movement, and consequently, the G direction. The state detection lever 106 is pushed down in the direction away from the cartridge 1 of the cartridge 1.

As shown in FIG. 15, the state detection lever 106 is always pressurized by the torsion spring 111, and receives the load which always rotates in I direction centering on the rotation shaft 115. As shown in FIG. One end of the torsion spring 111 is in contact with the state detection lever 106 and the other end is in contact with the wall surface of the mechanism chassis 60. However, as described above, the assist arm 104 prevents the state detection lever 106 from moving. The rotation shaft 115 of the state detection lever 106 is rotatably held by the rotation shaft holding portion of the mechanism chassis 60 (not shown).

After the slide cam 100 moves in the D direction in FIG. 6 and the alignment pin 102 is inserted into the positioning hole 3 of the cartridge 1 as described above, the slide cam as shown in FIG. 16. Since the projection 112 in the interior of 100 is in contact with the J portion of the assist arm 104, the rotation shaft 113 as shown in FIG. 12 from the state where the state detection lever 106 is pushed in as shown in FIG. It rotates in the direction opposite to H direction in FIG. As a result, even if the alignment pin 102 is displaced from the positioning hole 3 and the vicinity of the alignment pin 102 is bent, the alignment pin 102 is provided at the raised portion 114a near the tip portion 114. The assist of pushing up the vicinity of is performed. The state detection lever 106 is opened from the restraining force of the assist arm 104, and rotates in the I direction shown in FIG. 15 about the rotation shaft 115 toward the cartridge 1 by the action of the torsion spring 111. do.

The state in which the state detection lever 106 is inserted into the state detection hole 4 of the cartridge 1 is shown in FIG. 14, and here the state detection hole 4 corresponding to the state detection lever 106a among the state detection levers 106 is shown. ) Indicates a blocked state. This state is provided on the circuit board 116 as shown in Figs. 12 and 17, and detected by the state detection switches 105a and 105b positioned corresponding to the respective state detection levers 106a and 106b. The detection switch 105 determines the engagement state with the detection hole 52 of the cartridge 1 through the detection lever 106, thereby allowing the disc 10 to be recorded or not. ) Detects the front and back sides of the disk 10 and the recording capacity of the disk 10.                 

In the present invention, the state detection lever 106 is interposed between the state detection switch 105 and the state detection hole 4 of the cartridge 1. However, the direct state detection switch 105 may use a means for detecting the state detection hole 4 of the cartridge 1, and if the configuration permits, the alignment pin piece 102A and the state detection lever 106, or The alignment pin piece 102A and the state detection switch 105 are integrally formed so that the alignment pin 102 is inserted into the positioning hole 3 of the cartridge 1 and the state detection hole 4 of the cartridge 1. It is also possible to set it as such a structure as to detect.

The cartridge positioning assistance operation will be described. As shown in FIG. 10 to FIG. 12, the mechanism chassis 60 is a guide plate that is capable of regulating the position of the alignment pin 102 in the front and rear directions, and is capable of adjusting the position in the front and rear directions with respect to the mechanism chassis 60. 103 is fixed and provided by fixing means. This is because, for example, the guide plate 117 of the approximately eight-shaped guide groove 117 and the alignment pin 102 of the adjust plate 103 immediately before the alignment pin 102 engages with the positioning hole 3 of the cartridge 1. The gap between the portions 118 is minimized, and the alignment pin 102 is held in the front and rear direction without rattling. The guide groove 117 is, for example, approximately octagonal, and in detail, as shown in parts (a) and (b) of FIG. 52, both inclined surfaces have a multi-step taper shape. Although the guide portion 118 is located below the guide groove 117 and has a large gap between the guide portion 118 and the guide groove 117, the portion of FIG. 52 (b) shows that the guide portion 118 is a guide groove ( Located at the upper side of 117, the gap between the guide portion 118 and the guide groove 117 is small, and the guide portion 118 is positioned in the guide groove 117.

Next, the operation by which the side arm 143 presses the cartridge 1, that is, the operation 128 in FIG. 25, will be described with reference to FIGS. 19 to 24.

FIG. 19 is a view for explaining the relationship between the traverse holder 70 and the slide cam 100. FIG. 20 is a view showing the configuration of the traverse holder 70 and the side arm 71 serving as the cartridge pressing member. FIG. 21 is a cam groove shape of the slide cam 100 that is responsible for the operation of the alignment pin 107 and the side arm 71. 22 and 23 are diagrams showing the states of the side arms 71. FIG. 24: is a figure which shows the position which the side arm 71 clamps the tray 20. FIG.

In addition, the left and right side surfaces of the mechanism chassis 60 press the side arm 71 and the side arm 71 for regulating movement and vibration on the tray 20 of the cartridge 1 after the loading is completed. An arm spring 72 is provided. The side arm 71 presses the cartridge 1 to the tray 20 and presses the tray 20 to the mechanism chassis 60, whereby the cartridge 1, the tray 20, and the mechanism chassis 60. It has a function of eliminating the rattling generated between) and reducing the vibration and noise generated when the disc 10 rotates.

As shown in FIG. 19, two Z-shaped parallel cam grooves 109 formed in the slide cam 100 are positioned opposite to the alignment pin pieces 102A and protrude from one end of the traverse holder 70. A pair of pins, that is, the cam floor 183, is slidably engaged. The opposite ends of the traverse holder 82 have a surface parallel to the disk surface, and a pair of pivot shafts 84 protrude from the cam floor 183 perpendicularly, and the traverse holder 70 has a mechanism chassis 60. The bearing portion 67 is rotatably coupled around the pivot shaft 84. Accordingly, the traverse holder 70 rotates in accordance with the shape of the cam groove 109 of the slide cam 100 as the slide cam 100 slides in a direction perpendicular to the moving direction of the tray 20. It is structured to rotate around. As a result, the slide cam 100 constitutes lifting means for lifting and lowering the traverse holder 70.

As shown in FIG. 1, the traverse base 82 is elastically supported on the four corners of the traverse holder 70 by, for example, a rubber damper 71 and a fixing screw 85 that constitute the damper member. . By being elastically supported by the rubber damper 71, it is possible to reduce the influence on the recording / reproducing operation of the disk 10 when the disk recording / reproducing apparatus main body 140 is subjected to vibration or shock from the outside. It has an effect.

The traverse base 82 is slidably held in the longitudinal direction of the spindle motor 90, the guide shaft 97, the subguide shaft 98, and the guide shafts 97 and 98 for holding and rotating the disk 10. And a traverse motor 94 for moving the optical pickup 99 for reading or recording the information on the disk and the optical pickup 99 along the guide shafts 97 and 98 by the lead screw in the radial direction of the disk. have. Thus, the traverse holder 70 is raised by the action of the slide cam 100 so that the traverse base 80 approaches the disk 10 in the cartridge 1.

As shown in FIG. 20, a pair of notches 86 are formed symmetrically on both sides of the traverse holder 70, and a force point of the pair of side arms 143 at the end of the notch 86 is provided. 77 penetrates through the mechanism chassis 60. The pair of side arms 143 are disposed on both sides of the mechanism chassis 60, and the intermediate portion is axially supported by the pivot shaft 78 provided on both sides of the mechanism chassis 60, as shown in FIG. It is comprised so that rotation is possible centering on (78). In addition, the side arm 143 is located symmetrically with respect to the center line of the cartridge 1 loaded in the mechanism chassis 60 as shown in FIG. The torsion spring 143a is attached to the side arm 143 and the mechanism chassis 60, and the pressing direction of the torsion spring 143a is always the direction of lowering the working point 79 of the side arm 143, that is, the K direction. . Therefore, as the traverse holder 70 is raised, the operating point 79 of the side arm 143 is lowered.

The shape of the cam groove 109 of the approximately Z-shape of the slide cam 100 and the operation timing of each component from the combination of the alignment pin piece 102 and the traverse holder 70 are demonstrated using FIG.

The start point of the projection 108 of the alignment pin piece 102A is the L point of the cam groove 109 and the start point of the cam floor 183 of the traverse holder 70 is the M point of the cam groove 109.

First, the projection 108 of the alignment pin piece 102A raises the cam groove 109 of the slide cam 100 in advance of the traverse holder 70. When the alignment pin piece 102A reaches the highest position and the insertion of the alignment pin 102 into the positioning hole 3 of the cartridge 1 is completed, that is, when it comes to the N point of the cam groove 109, the traverse holder Cam floor 183 of 70 is at point O, at which time the side arm 143 has not yet reached pressurization of the cartridge 1. That is, the state shown in FIG. In addition, when the slide cam 100 moves by the loading gear system 66 of the loading motor 61, the alignment pin piece 102 does not change in the height direction only by moving the flat part of the cam groove 109. The traverse holder 70 continues to ascend, reaches the point P, and at the same time, the operating point 79 of the side arm 143 is brought into contact with the cartridge 1 in the state shown in FIG. After this point, the side arm 143 is held only at the operating point 79 and the rotational axis 78, and the force point 77 is lifted from the notch portion 86 to lose contact with the traverse holder 70. That is, after the cartridge 1 is positioned and fixed by the alignment pin 102, the side arm 143 is timing to fix the upper part of the cartridge 1. For this reason, the alignment pin 102 can reliably penetrate into the positioning hole 3 of the cartridge 1.

In addition, as shown in FIG. 24, the position where the action point 79 of the left and right side arms 143 presses the cartridge 1 is approximately the center portion in the depth direction of the cartridge 1, and the center portion of the disk 10 inside. to be.

Finally, when the cam floor 183 of the traverse holder 70 reaches the N point of the slide cam 100, the disk 10 is placed on the turntable 91 of the spindle motor 90 fixed to the traverse base 82. At the same time, the disk 10 floats in the cartridge 1, and the disk 10 is clamped by the clamper 74 in the standby state as described above to complete loading. After that, the disk 10 is rotated by the spindle motor 90 to start recording or reproducing.

In addition, in this embodiment, although the traverse base 82 and the traverse holder 70 were separate components, the traverse holder 70 was abolished and the traverse base 82 was directly driven by the slide cam 100, The side arm 143 may be driven by the traverse base 82.

The above is a series of sequences when the cartridge 1 is loaded.

By employing the above-described sequence, since the cartridge 1 is not pressurized when the cartridge 1 is loaded, the tray 20 can be smoothly moved. Since the load is reduced, it is not necessary to demand high torque from the loading motor 61, the device of low power consumption is realized, and the effect of extending the life of drive members such as gears can be expected.

The operation of the optical disc recording / reproducing apparatus configured as described above will be described taking the case of reproducing the cartridge 1 as an example. When the cartridge 1 is mounted on the tray 20 and the insertion force is applied to the cartridge 1, the insertion force is transmitted to the tray 20 through the stopper installed in the tray 20, and the tray 20 is manually The disc recording and reproducing apparatus 140 is started.

While the tray 20 is being manually loaded, a signal for passing the tray 20 is detected by an eject end switch (not shown) of the tray 20, and a driving voltage is applied to the loading motor 61, thereby loading By the rotation of the drive gear 66 which follows the rotation of the motor 61, the tray 20 starts an automatic loading operation.

At this time, the unnecessary load is not applied to the tray 20 and smoothly moves.

Immediately before the tray 20 reaches the insertion completion position, the projection 100a of the slide cam 100 engaged with the rod cam 249 installed on the lower surface of the tray 20 is driven by the driving force of the tray 20. As a result, when passing through the inclined portion 249a of the rod cam 249 formed on the lower surface of the tray, a horizontal driving force is generated on the slide cam 100, and the slide cam 100 moves in the right direction.

The rack gear 101 is coupled to the intermediate gear 65 while the slide cam 100 moves in the right direction, and driving of the slide cam 100 by the intermediate gear 65 is started. At the same time, the drive gear 66 is disengaged from the rack 40 of the tray 20 so that the drive of the tray 20 of the drive gear 66 is stopped. After this, the tray 20 is loaded by the protrusion 112 of the slide cam 100.

When the projection 100a of the slide cam 100 enters the extension portion 249b of the rod cam 249, the movement of the tray 20 is completed.

The protrusion 108 of the alignment pin 102 and the cam floor 183 of the traverse holder 82 are coupled to the cam groove 109 of the slide cam 100, and are raised along the cam groove 109 of the slide cam 100. do.

As shown in the timing chart of FIG. 21, since the same cam groove 109 of the slide cam 100 is used, a predetermined time difference occurs in the vertical drive of the alignment pin 102 and the traverse base 80. This time difference depends on the positional relationship of the longitudinal groove portions formed in the mechanism chassis 60. When the drive by the intermediate gear 65 of the slide cam 100 is started, the alignment pin 102 starts to rise first.

The alignment pin 102 rises along the guide groove 117 of the adjust plate 103 which regulates the movement of the alignment pin 102 in the front-rear direction with respect to the main body 140 of the disc recording / playback apparatus. The guide portion 118 of the alignment pin 102 and the guide groove 117 of the adjust plate 103 each have a multi-stage taper shape, and the cartridge of the alignment pin 102 (in order to reduce the load being raised) Before inserting the positioning hole 3 into the positioning hole 3, there is a predetermined gap, and the gap between the guide groove and the guide of the alignment pin 102 is minimized immediately before the alignment pin 102 engages with the positioning hole 3. By doing so, rattling in the front-rear direction of the alignment pin 102 is kept to a minimum.

Although the alignment pin 102 can give upward force by the cam profile of the cam groove 109 of the slide cam 100, the cam groove 109 is used to drive the left and right of the slide cam 100, so that the disc recording and reproducing apparatus can be used. It is formed near the center in the width direction of the 140, and the alignment pins 3 and the alignment pins 102 of the cartridge 1 exist near the end of the disc recording / reproducing apparatus 140, so that the alignment pins 102 ), The alignment pin 102 is inserted into the alignment pin 102 by the frictional resistance between the alignment pin 102 and the adjust plate 103 and the insertion load into the positioning hole 3 due to the displacement of the cartridge 1. There is a possibility that bending stress occurs and does not rise to the normal height.

In order to solve this problem in advance, in addition to the driving force of the cam groove 109 of the slide cam 100 of the alignment pin 102, the assist arm 104 applies the rising force of the alignment pin 102 to the second drive. By assisting as a means, the insertion force of the alignment pin 102 into the positioning hole 3 is strengthened, and the positioning of the cartridge 1 is assured.                 

As the slide cam 100 moves in the left and right direction, the assist arm 104 is moved by the assist arm pressing surface formed on the slide cam 100 in contact with the cam portion provided on the upper surface of the assist arm 104. Rotating together, the assist arm 104 contacts the lower portion of the alignment pin 102 to assist the force of the alignment pin 102 rising. Since the alignment pin 102 is formed of a resin, the assist arm 104 stops the driving force assisted just before the completion of the alignment pin 102 so that the constant load does not act and creep deformation. Break away.

The detection lever 106 is rotatably attached to the mechanism chassis 60, and is always pressed by the torsion spring 111 to the lower surface of the assist arm 104. As the slide cam 100 moves in the left and right direction, the detection lever 106 moves up and down under the restriction of the assist arm 104 about the rotation axis. Therefore, the height at the time of lifting of the detection lever 106 is regulated by the assist arm 104. Immediately before the assist arm 104 is fully raised, the detection lever 106 contacts the cartridge 1. In the absence of the cartridge 1, the pair of hook-shaped stoppers provided in the mechanism chassis 60 comes into contact with the tip end portions of the detection levers 106a and 106b to be positioned at a predetermined height.

The traverse holder 82 is rotatably attached to the mechanism chassis 60. After the cam floor 183, which is a pair of two front projections, is coupled to the slide cam 100, and the alignment pin 102 is raised, Ascending along the cam groove 109 of the slide cam 100. The traverse holder 82 detects the loading end by the detection switch 105 immediately after the completion of the ascent, and completes the loading.                 

Moreover, the side arm 71 which regulates the displacement and vibration of the cartridge 1 after completion of the loading of the mechanism chassis 60 is rotatably coupled to the pivot shaft 84 on the left and right of the mechanism chassis 60. The force point 77 of the side arm 71 is pressed by the lower part of the traverse holder 82. The working point 79 of the side arm 71 is above the tray 20. The side arm 71 rotates in the direction in which the operating point 79 descends about the rotation axis 84 in synchronization with the rise of the traverse holder 82. Immediately before the traverse holder 82 is fully raised, the working point 79 contacts the cartridge 1, when the traverse holder 82 is raised again, the force point 77 is released from the traverse holder 82, and the cartridge 1 ) Is pressed in the direction pressed against the tray 20 by the force of the side arm spring 72 of the side arm 71, and the positioning of the front, rear, left, right, up and down of the cartridge 1 is completed.

Next, the state in which the optical disc recording and reproducing apparatus 140 having the above mechanism loads a single disc not contained in the cartridge 1 will be described.

Since each part except the side arm 143 performs the same operation as when the cartridge 1 is loaded, the description thereof is omitted.

As described above, the side arm 143 rotates in the ascending direction of the traverse holder 70, and the operating point 79 descends. However, since the working point 79 stays above the upper surface of the disk, and the force point 77 is in contact with the notch portion 86 of the traverse holder, the working point 79 does not need to be lowered further from the position. The posture is maintained while maintaining a sufficient clearance between the working point 79 and the disc. Therefore, even if a single disc is loaded, the working point 79 of the side arm 143 does not interfere with the disc.

In addition, the notch part 113 which the acting point 79 of the side arm 143 passes is formed in the both sides of the upper base 83, and the upper base when the acting point 79 of the side arm 143 fell the most. The relationship with the 83 is that the interference between the side arm 143 and the upper base 83 is integrated by lowering the state where the action point 79 of the side arm 143 is lower than the lower surface of the upper base 83. Disappear. For this reason, the freedom of the installation method of the upper base 83 is increased, for example, by attaching the upper base 83 to the mechanism chassis 60 without detaching the side arm 143, thereby shortening the assembly time and parts. Reduction of the replacement work time can be expected.

(Embodiment 5)

Fig. 26 shows a fifth embodiment of the present invention. A second working point 79b is formed in addition to the above-mentioned working point 79 of the side arm 143, and when the single disk 11 is loaded by the second working point 79b, the side arm 143 It is comprised so that the taper part 114a of the front end side of the side walls 25 and 26 formed in the both inner side of the tray 20 by the operation | movement may be pressed. For this reason, the vibration of the tray 20 resulting from the eccentric center of the disk 11 can be suppressed.

When the first working point 79 of the side arm 143 is fixing the cartridge 1, the second working point 79b is positioned so that the second working point 79b is lifted from the tapered portion 114a without pressing the tray 20. Set.

Alternatively, the second working point 79b is disposed to extend from the front end side to the first working point 79 of the side arm 143, and the side walls 25 and 26 are slightly extended to the front side, or the side walls 25 and 26 are disposed. The tapered portion 114a at the front end of the sheet) is smoothed or a step is formed in the middle of the slope, so that the tray 20 can be caught and the tray 20 is pressed at the second working point 79b. In this case, the notches may be formed on the side walls 25 and 26 so that the second working point 79b does not contact the tray 20. Also in this case, when the 1st working point 79 fixes the cartridge 1 as mentioned above, the 2nd working point 79b does not press the tray 20, but the 2nd working point 79b and a cartridge are There is clearance between (1). For this reason, the tray 20 is fixed by the side arm 71 via the cartridge 1, and in the case of a single disc, the 2nd working point 79b fixes the tray 20. As shown in FIG.

In addition, in FIG. 26, the 2nd action point 79 fixes the slope of the front end of the side walls 25 and 26 of the tray 20, and presses in the direction orthogonal to the slide direction of a cartridge 1, and a slide direction. Although it is possible, the flat part may be formed just below the acting point 79 of the side arm 71 of the tray 20, and the 1st acting point and the 2nd acting point may be used as the same acting point.

Embodiment 6

The drive door lock mechanism of the optical disc recording / reproducing apparatus of the sixth embodiment of the present invention is shown in Figs. 1 to 4 and 27 to 29. Figs. In Fig. 1, 140 denotes an apparatus body of an optical disc recording / reproducing apparatus having an opening 60a, and is composed of a mechanism chassis 60 and an upper base 83. 20 is a tray for mounting a cartridge and a single optical disc, and 243 is a door for opening and closing the opening 60a.

In the center of the cartridge mounting surface 21 of the tray 20, two large and small concave portions 22, 23 formed concentrically are formed. The large-diameter recesses 22 are arranged so that the large-diameter disc mounting portions and the small-diameter recesses 23 are divided by the small diameter disk mounting portions according to the outer diameters of the single discs mounted on the optical disc recording / playback apparatus main body 140.

In addition, the left and right sides of the tray 20 are slightly larger than the external dimensions of the cartridge 1, and the left wall 25 and the right wall 26 are formed perpendicular to the cartridge mounting surface 21, and the cartridge 1 ) Has a function of a guide at the time of mounting on the tray 20.

An opening 30 is formed in a part of the left wall 25 and the right wall 26 of the tray 20 (FIGS. 3 and 4), and the concave shape of the concave portion on the inner side of the left and right ends of the cartridge 1 is joined. The cartridge holder 27 which engages the part 6 is provided.

The cartridge holder 27 has the hole 27a which passes the pin 28 provided in the cartridge mounting surface 21 in the center, is rotatably held centering around the pin 28, and one end is a cartridge 1 Has a convex portion 27b that engages with the engaged portion 6 of the &lt; RTI ID = 0.0 &gt;), &lt; / RTI &gt; the other end of the spring, for example, in the direction of holding the engaged portion 6 of the cartridge 1 between the trays 20. It is pressed by the coil spring 49.

On the inner side of the tray 20, an opener 29 for opening and closing the shutter 2 of the cartridge 1 is provided to be movable in the left and right directions. Loading is performed while the opener 29 hangs on the projection at the tip of the shutter 2 and opens to the left. For this reason, the cam groove (not shown) which opens the opener 29 so that the shutter 2 may be opened according to the loading operation | movement of the tray 20 is formed in the back surface of the upper base 83, for example.

The disc (not shown) accommodated in the cartridge 1 can be rotated by the spindle motor 90 described later and recorded and reproduced by the optical pickup 99 when the shutter 2 is released.

The loading motor 61 and its deceleration loading gear system 66 are installed in front of the mechanism chassis 60, and one side of the rear surface of the tray 20 is installed in the rack gear 40 coupled with the drive gear 66. (FIG. 4). The tray 20 is configured to be loaded and ejected by changing the rotational direction of the loading motor 61. Similarly, in the vicinity of the rack gear 40 on the back of the tray, a metal guide shaft 41 is held at the front and rear ends of the tray 20, and is held in the mechanism chassis 60 via the shaft holder 42. . The edge portion of the other side of the tray 20 is slidably supported by the end portion 63 of the inner portion of the mechanism chassis 60. As a result, the tray 20 is supported by the apparatus main body 140 so as to be able to carry in and out.

As shown in Fig. 1, the spindle motor 90 for holding and rotating the disk, the optical pickup 99 for reading the information of the disk or recording the information on the disk, and the optical pickup 99 for the guide shafts 97 and 98. The traverse base 82, which holds the traverse motor 94 and the lead screw 95, which move in the radial direction of the disk, is held with respect to the traverse holder 70 with four edges elastically with the rubber damper 71. have. 85 is the fixing screw for the rubber damper. By being elastically supported by the rubber damper 71, the optical disk recording / reproducing apparatus main body 140 has an effect of reducing the influence on the disk recording / reproducing operation in the case where vibration or shock from the outside is given. .                 

On the rear side of the traverse holder 70, the shaft 84 is pivotally supported on the bearing 67 of the mechanism chassis 60, and the projection 183 on the front side of the traverse holder 70 is the slide cam 100. Is coupled to the inclined cam slit, and the traverse holder 82 is driven up and down by the left and right movement of the slide cam 100.

When the disk is mounted on the spindle motor 90, the disk is fixed to the turntable 91 by the clamper 84 provided on the upper base 83. The clamper 84 is comprised by the member which can be divided | segmented into two upper and lower sides, and contains the magnet inside. In addition, in order to center the disk with respect to the turntable 91, a magnetic material is filled in the top part of the center cone comprised in the center. With the magnetic attraction force of the magnet and magnetic material embedded in the clamper 84, the clamper 84 fixes the disk to the turntable 91.

On the front side of the traverse holder 70, a partition wall 178 of the loading motor 61 and the traverse holder 70 is provided in the chassis 60, and the slide cam 100 is disposed on the partition wall 178 in the horizontal direction. It is installed to be movable.

The rack gear 101 is provided in front of the slide cam 100, and is driven to the left and right as an intermediate gear of the deceleration loading gear system 66. Moreover, the projection 100a of the slide cam 100 is couple | bonded with the rod cam 249 of a groove-like parallel to the back surface of the tray 20, for example. The corner portion 249a on the front end side of the rod cam 249 is inclined at about 45 degrees and has an end portion 249b extending perpendicular to the moving direction. When the protrusion 100a moves the corner portion 249a, the rack gear 101 is engaged with or separated from the loading gear system 66. At the same time, after engagement with the intermediate gear of the rack gear 101 and the loading gear system 66, the meshing of the drive gear 66a and the rack gear 40 is released, on the contrary, the rack gear 101 and the loading gear system 66 The drive gear 66a and the rack gear 40 mesh with each other before the intermediate gear is separated.

The slide cam 100 is moved from side to side, so that together with the traverse holder 82, the alignment pin 102 for positioning the cartridge 1 at the loading position is coupled to the cam slit (not shown) to be driven up and down. In addition, the detection lever 106 is configured to be driven in the vertical direction through the assist arm 104.

The door 243 and the locking means will be described. An example of a return spring provided with opening holes 68a and 68b at the front side of the right side of the mechanism chassis 60 (Fig. 28), and the door lock pin 147 serving as the lock member is provided between the door lock pin 147 and the mechanism chassis 60. For example, the door lock pin 147 is pressurized by the coil spring 148 to the left side which is the open side of the lock of the door 243. As shown in FIG.

The door lock pin 147 forms a U-shape and constitutes chassis coupling pins 147a and 147b with the mechanism chassis 60, and a tray coupling pin perpendicular to the chassis coupling pins 147a and 147b in the middle thereof. 147c is provided, and the tray coupling pin 147c engages with the cam 50 formed by, for example, a straight groove provided in the rack gear 40 on the rear surface of the tray 20. The cam 50 is inclined at about 45 degrees toward the side, whereby the cam 50 drives the tray coupling pin 147c in the right direction just before the tray 20 finishes loading. The chassis coupling pins 147a and 147b protrude from the right wall surface of the mechanism chassis 60.

The door 243 provided in the opening portion 60a of the front surface of the optical disc recording / playback apparatus 140 has a hinge portion (not shown) at its left and right ends, and fits with the support shaft provided in the mechanism chassis 60, The door 243 is supported by the mechanism chassis 60 so as to be openable and openable in the opening 60a with the hinge portion as the rotation center.

The door 243 is pressurized by a spring (not shown) to the side which shields the opening part 60a, and has the structure which presses the door 243 at the front-end | tip of the tray 20 by the ejection operation of the tray 20, and opens.

On the other hand, coupling portions 145 and 146 for restricting the opening amount of the door 243 are provided on both sides of the door 243, and the coupling portion 146 on the right side is combined with the door lock pin 147. The engaging portion 146 engages with the engaging pin 147a protruding from the opening hole 68a on the right side of the mechanism chassis 60 when the tray 20 is finished loading, thereby opening the door 143 from the outside of the apparatus. Operation is locked.

143 is a side arm which is axially supported by the shaft 78 of the mechanism chassis 60 and presses the loaded cartridge 1 by the spring 143a, and the traverse base 70 whose proximal end moves upward and downward. The cartridge is pushed and fixed at the distal end of the side arm 143 by moving the traverse base 70 upward. 185 is a circuit board of the control circuit, and has a switch that moves in response to a detection lever for detecting a mounted state or the like of the cartridge 1.

The operation of the optical disc recording / reproducing apparatus 140 configured as described above will be described taking the case where the loading operation of the tray 20 is performed as an example.

When the loading eject switch 142 of the optical disc recording / reproducing apparatus 140 is pressed, a driving voltage is applied to the loading motor 61, and the rack gear 101 is rotated by the rotation of an intermediate gear that follows the rotation of the loading motor 61. ), The slide cam 100 moves to the left, and the traverse holder 70 which engages with the cam groove 109 is evacuated downward. At this time, the traverse base 82 supported by the traverse holder 70 is also evacuated downward in synchronization. At the same time, the detection lever 106 is also withdrawn from the cartridge 1 via the alignment pin 102 and the assist arm 104.

Next, the ejection operation of the tray 20 is started by the projection 100a formed on the upper surface of the slide cam 100 driving the groove of the corner portion 249a of the rod cam 249 formed on the rear surface of the tray. The ejection operation of the tray 20 is initially driven by the projection 100a of the slide cam 100, but the driving force is a tray 20 by the drive gear 66a that follows the rotation of the loading motor 61 in the middle. The drive is switched to the drive of the rack gear 40 provided on the back side of the head), and the drive is continued until the tray 20 reaches the end point of the eject of the optical disc recording / playback apparatus body 140.

In response to the start of the ejection operation of the tray 20, the door 243 firstly opens and rotates downwardly against the return spring 148 by pressing the hinge downward. 20 is ejected from the optical disc recording / reproducing apparatus 140 (FIG. 29).

Next, the single cartridge 1 is mounted on the ejected tray 20, the front end of the tray 20 is pushed in, or the load eject switch 142 of the optical disc recording / reproducing apparatus body 140 is pressed again. The driving voltage is applied to the loading motor 61, and the loading motor 61 is rotated reversely, and the automatic loading operation of the tray 20 is started by the rotation of the drive gear 66 that follows.

When the tray 20 is completely loaded into the optical disc recording / reproducing apparatus 140, the door 243 is shielded by the return spring 148. At this time, the lock pin 147 protrudes from the right side surface of the chassis 60 by the action of the lock pin driving cam 50 provided on the rear surface of the tray 20, and is coupled to the lock pin coupling part 146 of the door 243. The lock operation 243 is completed (FIG. 28).

(Embodiment 7)

A seventh embodiment of the present invention is shown in Figs. The difference from the sixth embodiment is that the slide cam 100 drives the lock pin 147 to lock the door 243. That is, when loading of the tray 20 is completed, the slide cam 100 starts to move to the right side of the tray 20 by the corner portion 249a of the load cam, and the drive gear 66a and the rack gear 40 are moved. Even after the engagement of the rollers is released and the tray 20 stops, it is also driven by the loading gear system 66 to slide along the rod cam 249b until the traverse base 82 or the like is pushed upward. In this slide operation, the lock pin 147 is pushed against the spring 148 (part (a) of FIG. 31). As a result, the lock pin 147 engages with the lock pin coupling part 146 after the door 243 is closed by completion of loading of the tray 20.

32 is an ejected state of the tray 20, the slide cam 100 is moving to the left, and the lock pin 147 is returned to the retracted position by the return spring 148. As shown in FIG.

Therefore, the lock pin drive cam 50 and the tray coupling part 147c of the lock pin 147 of the back surface of the tray 20 of 1st Embodiment become unnecessary. The other structure is the same as that of 1st Embodiment.

Moreover, the slide cam 100 and the lock pin 147 can be integrated, and the number of parts can be further reduced.

Embodiment 8

An eighth embodiment of the invention is shown in FIGS. 33 to 35. The optical disc recording and reproducing apparatus has a slot loading method, and has a guide portion (not shown) for guiding the cartridge 1 to be movable instead of the tray 20, and an example of a roller for automatically loading the cartridge 1. For example, the rubber roller 197 and the pressure plate 198 are attached to the apparatus main body 140.

In addition, the door 193 is held on the optical disc recording / reproducing apparatus body 140 so as to be movable up and down, the rack gear 194 extends in the moving direction behind the door 193, and the lock engaging portion 199. Is protruded to the inside of the device body 140. A door opening / closing motor (not shown) is installed in the vicinity of the door 193 of the optical disc recording and reproducing apparatus body 140, and drives the drive gear 196 which is coupled with the rack gear 194.

Inside the opening 60a of the front surface of the optical disc recording / reproducing apparatus body 140, a rubber roller 197 and a pressure plate 198 are provided to face each other, and the pressure plate 198 is rotated so as to approach the rubber roller 197 apart. It is comprised so that it is pressed by the rubber roller 197 by the pressure spring (not shown). The rest of the configuration is the same as in the first embodiment.

When the load eject switch 142 is pressed, the drive gear 196 is rotated by driving the door opening / closing motor, and the door 193 is vertically moved downward in parallel to the front of the apparatus main body 140, thereby recording the optical disc. The opening 60a of the front surface of the playback apparatus body 140 is revealed (FIG. 35).

When the cartridge 1 is inserted between the rubber roller 197 and the pressure plate 198, the rubber roller 197 returns by the frictional force with the cartridge, and the control circuit which detects the rotation of the rubber roller 197 is a rubber roller. 197 is rotated so that the cartridge 1 is automatically loaded while the shutter 2 of the cartridge 1 is opened inside the optical disc recording / reproducing apparatus main body 140.

At this time, the traverse base 82 supported by the traverse holder 82 evacuated downward from the passage of the cartridge 1 rises by the movement of the slide cam 100, and the disc inside the cartridge 1 is moved. To the turntable 91 and clamper 84 of the spindle motor 90.

When the loading of the cartridge 1 is completed, the drive gear 196 reverses rotation by driving the door opening / closing motor (not shown), and the rack gear 194 moves to move the door 193 vertically upward. The opening 140 of the front surface of the optical disc recording / reproducing apparatus main body 140 is shielded.

At this time, by the movement of the slide cam 100, the door lock pin 147 is driven to engage with the engaging portion 199 of the door 193, thereby avoiding manual opening of the door 193 from the outside. (FIG. 34).

In addition, in realizing the slot loading mechanism, the lock pin 147 is driven by the slide cam 100 and the door 193 is opened and closed by a motor drive because there is no tray, but the vertical opening and closing of the door 193 is essential. It may be a structure which opens and closes by rotation by the drive of the door opening / closing motor.

In addition, although the slide member shared the slide cam 100, unlike the slide cam 100, a slide member may be provided and a motor other than a loading motor may be used.

(Embodiment 9)

An auto loading mechanism according to a ninth embodiment of the present invention will be described with reference to FIGS. 1 to 4 and 36 to 44. 1 shows an optical disc recording and reproducing apparatus to which the first embodiment of the present invention is applied. In Fig. 1, reference numeral 20 denotes a tray which is, for example, a tray containing a cartridge containing an optical disc and a single optical disc (not shown), and 140 is a main body of the optical disc recording and reproducing apparatus.

In the main body 140, 60 is a box-shaped box made of synthetic resin having both sidewalls, 70 is a traverse holder whose one end is supported by the chassis 60 so as to be movable up and down, and 82 is vibrated by the traverse holder 70. Traverse base, which is held through the absorption damper 71 and has a recording / playback mechanism, 83 is a top cover which is attached to the chassis 70 and is covered by the traverse base 82, and 85 is a control attached to the bottom of the chassis 60. The circuit board.

The chassis 60 is provided with a loading motor 61 and a loading gear system 66 which are driving means of the tray 20 inside the opening 60a for carrying in and unloading the tray 20.

The traverse base 82 includes a spindle motor 90 for holding and rotating an optical disk, an optical pickup 99 for reading information on the disk 10 or recording information on the disk, and an optical pickup 99 in the radial direction of the optical disk. The lead screw 95 which moves the traverse motor 94 which moves, and the optical pickup 99 is hold | maintained.

The upper cover 83 supports an intermediate portion of the clamper 84 that clamps the optical disk to the spindle motor 90, presses the spring with the front end side thereof out of the spindle motor 90, and presses the optical disk to the spindle motor 90. ), The clamper 84 is resistant to the spring and close to the spindle motor 90 so as to fix the disk on the turntable.

On the front side of the traverse holder 82, a slide cam 100 that engages with the mechanism chassis 60 is provided to be movable in the horizontal direction. The slide cam 100 is guided to the guide cam groove 249 (see FIG. 4) on the rear surface of the tray 20 to reciprocate a predetermined range in conjunction with the loading operation and the ejecting operation of the tray 20. The front side of the slide cam 100 has a rack gear, and is driven left and right in the intermediate gear of the loading gear system 66 in a predetermined range after interlocking with the loading operation of the tray 20. At this time, the slide cam 100 is moved left and right, so that the traverse holder 82, the alignment pin 102, and the detection lever 104 are driven in the vertical direction, and move in response to the operation of the detection lever 104 to detect the state. The pin 106 is configured to operate in the vertical direction.

2 shows a tray 20 and a cartridge holder 27. In the center of the cartridge mounting surface 21 of the tray 20, two large and small concave parts formed concentrically are formed. The large-diameter recesses are prepared by the large-diameter disk mounting section 22 and the small-diameter recesses on the small-diameter disk mounting section 23 in accordance with the disc outer diameter of a single body mounted on the main body 140 of the disk recording / reproducing apparatus.

The outside of the cartridge 1 (FIG. 37) on both the right and left sides of the tray 20 in a length of about half of the total length on the inside of the cartridge mounting range in the carry-in / out direction of the tray 20. It is slightly larger than the dimension, and the left wall surface 25 and the right wall surface 26 are formed perpendicularly to the cartridge mounting surface 21, and have a function as a guide member at the time of mounting the cartridge 1 on the tray 20. have. In addition, the opening portion 30 is formed in a part of the left wall surface 25 and the right wall surface 26, and the positions on the left and right sides of the loading or unloading direction axis passing through the center of the cartridge 1, for example, the left and right sides The cartridge holder 27, which is a holding member of the cartridge holding means that engages with the engaged portion 6 (see Fig. 42) formed in the concave shape on the inner side in the carrying-in direction, is the inner side of the left wall surface 25 and the right wall surface 26. Installed in

The front surface of the tray 20 and the front side of the wall surfaces 25 and 26 on both sides are not provided with a wall surface perpendicular to the cartridge mounting surface. For this reason, the obstacle at the time of mounting the cartridge 1 in the tray 20 is eliminated. In addition, the front edge of the tray 20 is formed in a convex curved surface, and since the cartridge 1 is a flat rectangular body, both rear ends of the cartridge are more than the tray 20 in the mounted state on the tray 20.

Part (b) of FIG. 2 shows the cartridge holder 27 and immersably engages with the concave engaging portion 6 located on both the left and right sides of the carrying or unloading direction axis passing through the center of the cartridge 1. . The cartridge holder 27 is an elongated shape made of synthetic resin and is bent in a substantially Z shape so that its middle portion forms a stepped shape, and the shaft hole 27a is formed in the middle portion in a direction orthogonal to the short bending direction. , The shaft hole 27a is fitted to the pin 28 provided outside the cartridge mounting range from the left side 25 and the right side 26 of the cartridge mounting surface 21 to be rotatable about the pin 28. Maintained. In addition, the cartridge holder 27 extends within the cartridge mounting range with a convex engaging portion 27b that is formed in, for example, a substantially triangular shape that engages with the engaged portion 6 of the cartridge 1 at the distal end side of the step. The spring receiving projection 27c is formed in the same direction as the engaging portion 27b at the tip of the step rising side opposite to this, and the projection 37 on the tray 20 side is opposed to the projection 37 (Fig. 36). And press the coupling part 27b in the direction which holds the to-be-engaged part 6 of the cartridge 1 through the coil spring 49 so that both ends may fit in these, and it preloads. The stopper 31 of the cartridge holder 25 with respect to the spring force of the coil spring 49 is provided at a position substantially opposite to the spring receiving projection 27c of the tray 20. Moreover, the step-falling side portion of the cartridge holder 27 from the hole 27a of the cartridge holder 27 on the engaging portion 27b side enters the opening 30 in the state where the cartridge holder 25 is supported by the stopper 31. The side surface 27d is substantially coincided with the inner surfaces of the wall surfaces 25 and 26, so that only the engaging portion 27b is projected into the cartridge mounting range. This avoids the tray 20 becoming wide.

Moreover, the opener 29 which opens and closes the shutter 2 of the cartridge 1 is provided in the inside of the tray 20 so that a movement to the left-right direction is possible. The opener 29 is configured to operate in conjunction with the loading operation of the tray 20, and the loading is performed while opening the projection of the shutter opener 29 to the left of the projection at the tip of the shutter 2. In this case, the guide cam groove of the opener 29 is formed in the main body 140 or the upper cover side so that the operation of the opener 29 may be linked to the carry-in / out operation of the tray 20. Alternatively, when the cartridge 1 is attached to the tray 20, a means for driving the opener 29 to open the shutter may be provided. When the shutter 2 is opened, the optical disc housed in the cartridge 1 can be rotated by the spindle motor 90 and recorded and reproduced by the optical pickup 99.

4 shows the rear surface of the tray 20, and on one side thereof, a rack gear 40 that engages with the drive gear 66a of the loading gear system 66 is provided. The tray 20 is configured to be loaded and ejected by changing the rotational direction of the loading motor 61. Similarly, in the vicinity of the rack gear 40 on the back of the tray, in parallel with this, a metal guide shaft 41 is held at the front and rear ends of the tray 20, and the shaft holder 42 bearing the guide shaft 41. ) Is held in the mechanism chassis 60. On the other hand, the other side of the tray 20 is slidably mounted on the guide jaw portion 63 (FIG. 1) formed on the inner side of the box-shaped mechanism chassis 60, and can be retracted provided on the side wall of the mechanism chassis 60. The operation away from the guide jaw 63 by the pressing part 183 which protrudes elastically is prevented.

36 and 41 show a loading state of the tray 20. Until the tray 20 is finished loading, the spindle motor 90, the traverse motor 94, and the optical pickup 99 held on the traverse base 82 interfere with the tray 20 and the cartridge 1. In order to avoid this, the evacuation is made below the loading path of the tray 20.

In the loading completion state of the tray 20, the tray 20 is positioned so that the spindle motor 90 is located at the center of the optical disc. Shortly before this, the slide cam 100 is driven by the loading gear system 66 so that the alignment pin 102 protrudes through the hole 20a formed in the tray 20 to be formed in the cartridge 1. It fits into one positioning hole. The cartridge 1, which is substantially regulated in front, back, left, and right of the tray 20 by this fitting operation, is finally positioned relative to the tray 20 and the spindle motor 90. In addition, the traverse base 82 is moved so that the spindle motor 90 and the optical pickup 99 approach the optical disc of the cartridge 1 mounted on the tray 20 from the central opening 20b of the tray 20, At the same time, the clamper protrudes from the tray 20 while pressing the center both sides of the cartridge 1 by the force of the spring 143a attached thereto by the push lever 143 according to the homology of the traverse base 82. The pressing end 130 presses the rear end of the clamper 84, and the front end side of the clamper 84 approaches the optical disk, and the optical disk is clamped on the turntable of the spindle motor 90. In addition, at the loading position of the tray 20, the front end of the tray 20 is located inside the opening 60a of the chassis 60, and moves in response to the operation of the detection lever 104 near the completion of loading. On the front end side of the cartridge 20, the state detection pins 106 for detecting the front and back of the cartridge 1 and for detecting the recordable state protrude toward the cartridge 1, and correspondingly to the cartridge 1 A back surface detection hole and a recordable detection hole (not shown) are formed.

37 and 38 are ejected states of the tray 20, and the tray 20 is carried out by driving in the opposite direction as when the loading motor 61 is loaded. At this time, the slide 100 engaged with the loading gear system 66 is operated to lower the detection lever 106, the alignment pin 102, and the traverse base 82, and the state detection pin is detected by the detection lever 106. 106 is also lowered, the push lever 143 is raised to enable the movement of the tray 20, the clamper 84 is dropped when the tray 20 starts to move.

39 and 40 show a detection member 30 and a detection switch 31 as mounting detection means. The detection member 30 is provided in the lower part of the top cover 83, and detects the arrangement | positioning of the normal position in the tray 20 of the cartridge 1. As shown in FIG. In the embodiment, the detection member 30 is formed by a U-shaped spring member, for example, a leaf spring, so that one end 30a is formed on the lower surface of the hole 33 near the front end of the upper lid 83. The bent portion 30b passes through the hole 33, the other end 30c is positioned on the upper surface side of the top cover 83, and the bent portion 30b is in a position to receive the upper surface of the cartridge 1; . The detection switch 31 is provided on the top cover 83 such that the operation portion thereof overlaps with the other end 30c of the detection member 30 on the upper surface of the top cover 83, and the tray (in the unloaded state of the tray 20). 20) detects the movement of the other end 30c by the cartridge 1 being placed in the normal position. When the cartridge 1 is not normally mounted on the tray 20, the bent portion 30b of the detecting member 30 is in the imaginary line, and is separated from the switch 31, so that the cartridge 1 is mounted. The switch 31 is operated at the other end 30c. The output line 34 of the detection switch 31 is wired to the control circuit of the substrate provided on the rear surface of the chassis 60, and the control circuit inputs the detection signal from the detection switch 31 to the loading motor (the driving means). The operation command is output to 61).

The operation of the main body 140 of the disc recording / reproducing apparatus configured as described above will be described taking the case of reproducing the optical disc stored in the cartridge 1 as an example.

42 to 43 show a case where the cartridge 1 is mounted on the tray 20, and the disc recording / playback apparatus main body 140 is placed on the cartridge mounting surface 21 in front of the tray 20. The cartridge 1 is slid in the direction of being pushed into it.

The tip shape of the engaging portion 27b, which is a projection of the cartridge holder 27, while the left and right end surfaces of the cartridge 1 are pushed into the tray 20 using the left wall surface 25 and the right wall surface 26 as guides. Since it has an inclined surface, the width of the left wall 25 and the right wall 26 is easily opened by the insertion force of the cartridge 1.

44, the cartridge 1 is further inserted so that the engaging portion 27b of the cartridge holder 27 is immersed and engaged with the engaged portion 6 of the cartridge 1 by the pressing force of the coil spring 49. As shown in FIG. Indicates. At this time, the operator can recognize that the coupling is completed by the change in the insertion force and the sound generated when the cartridge holder 47 is coupled.

On the inner side of the cartridge mounting surface 21, a stopper 35 for regulating the insertion limit of the cartridge 1 is provided, and the coupling position between the cartridge 1 and the cartridge holder 27 and the stopper 35 are provided. The insertion limit is almost identical. This completes the mounting of the cartridge 1 on the tray 20. At this time, movement of the cartridge 1 in the front-rear direction, the left wall surface 25, and the right wall surface 26 by the cartridge holder 27 is restricted in the left-right direction.

At the same time, the detection member 30 is pressed by the insertion end of the cartridge 1, and the detection member 30 presses the operation portion 31a of the detection switch 31 to output the detection signal. The detection signal is output to the control circuit so that the loading motor 61 operates.

In this embodiment, the control circuit can be replaced so that the driving means is not operated by the operation of the detection switch 31, and the following loading operation can be performed.

That is, in the case of the manual loading operation, the insertion force inserted into the tray 20 is continuously supplied to the cartridge 1, and the insertion force is transmitted to the tray 20 through the stopper 35, so that the tray 20 is manual. By the disc recording / reproducing apparatus main body 140 is started.

While the tray 20 is being manually loaded, a signal of passing through the tray is detected by the eject end switch (not shown) of the tray, and a driving voltage is applied to the loading motor 61, thereby following the rotation of the loading motor 61. By the rotation of the drive gear 66 to the tray 20 is automatically started the loading operation.

Here, when comparing the magnitude of the insertion force of the cartridge 1 to the cartridge holder 47 and the manual loading force of the tray 20,

Cartridge insertion force <manual loading force

By setting the spring constant and the preload force of the coil spring 49 that presses the cartridge holder 27 so that the relationship between the two is established, the tray 20 after the mounting of the cartridge 1 to the tray 20 is completed. Manual loading is performed.

If the force relationship is reversed, before the insertion of the cartridge 1 into the cartridge holder 47 is completed, the loading of the tray 20 is started, and the clamp miss of the disc 10 accommodated in the cartridge 1 is started. Occurs.

On the other hand, in the case of the automatic loading operation, when the loading of the cartridge 1 on the tray 20 is completed, the loading switch (not shown) of the disc recording / playback apparatus 140 is turned ON and the loading motor 61 is turned on. The tray 20 is automatically started by the rotation of the drive gear 66 which gives a driving voltage and follows the rotation of the loading motor 61.

According to the configuration of the present embodiment, after the cartridge 1 is mounted on the tray 20, the cartridge mounting surface 21 is used when the tray 20 and the cartridge 1 are loaded into the optical disc recording / reproducing apparatus main body 140. ) The loading operation is completed by inserting the image onto the cartridge 1 so as to slide and continuing the insertion force as it is. In other words, in the conventional disc recording / reproducing apparatus, the operation of mounting the cartridge 1 and loading of the tray 20 has been achieved in a plurality of operations only by the insertion operation of the cartridge 1.

Moreover, in the conventional disc recording / reproducing apparatus, since the box shape has a front wall surface for positioning the cartridge with respect to the tray, when mounting a single optical disk on the tray, there is a feeling of discomfort in the operation of mounting the disk on the tray while avoiding the front wall surface. It was born. However, in the tray 20 of the present embodiment, since generally a tray having only a single optical disk and a tray of substantially the same shape can be adopted, there is no discomfort in operability when mounting the single disk in the tray. Do not. In addition, since the front wall is eliminated, the degree of freedom in the design of the tray is improved, and for example, a high-quality design, etc., which aims at a design effect from a function-oriented design can be adopted.

In addition, according to the configuration of the present embodiment, after the cartridge 1 is mounted on the tray 20, the tray 20 and the cartridge 1 are loaded onto the optical disc recording / reproducing apparatus. Is inserted so as to slide the cartridge 1, and the loading operation is automatically started only by removing the hand from the cartridge 1 in the inserted state, and the cartridge 1 is mounted in the optical disk apparatus. In other words, in the conventional optical disc recording / reproducing apparatus, a series of three operations such as pushing the cartridge 1 to the tray 20, mounting to the regular position, pushing the tray, or other switch operation is performed during recording and reproducing. All that was needed was to simply put the cartridge on the tray.

In addition, it is possible to simply configure the means for detecting the mounting at the normal position after the mounting of the cartridge 1 on the tray 20 or the loading driving means. Their easy configuration leads to increased reliability.

Embodiment 10

A tenth embodiment of the present invention will be described with reference to FIGS. 45 and 46. That is, in the first embodiment, the cartridge holder 27 also serves as the detection member 30 for driving the detection switch 31 as the state detection means for completing the mounting of the cartridge 1 at the normal position. (30) is omitted. In the embodiment, the switch pressing portion 27e protrudes in the direction opposite to the spring receiving protrusion 27c at the end opposite to the engaging portion 27b of the cartridge holder 27, and the chassis (27e) is mounted on the chassis (27e). The operation part 31a of the detection switch 31 fixed to 60 opposes.

45 shows a state before installation of the detection switch 31.

Part (a) of FIG. 46 is the same state as FIG. 13 in which the cartridge 1 is not mounted on the tray 20 in the ejected state of the tray 20. At this time, the operation part 31a of the detection switch 31 is pressed by the switch press part 27e by the spring 49. As shown in FIG. Part (b) of FIG. 46 is a state in which the cartridge 1 is attached to the tray 20, and the engaging portion 27b is pressed at both ends of the cartridge 1, resulting in the switch pressing portion 27e. In the state away from the detection switch 31. Part (c) of FIG. 46 is a state in which the engaging portion 27b is immersedly coupled to the to-be-engaged portion 6 of the cartridge 1, and the detection switch 31 is switched to the switch pressing portion 27e of the cartridge holder 27 again. Presses the operation part 31a. For this reason, the detection switch 31 deviates from the state which the operation part 31a was pressed, outputs the signal according to a series of operation | movement which is pressed to a control means, a control means detects that the cartridge 1 is normally mounted, The drive signal is output to the loading motor 61, which is the driving means, whereby the tray 20 starts loading, and the switch pressing portion 27e is separated from the operation portion 31a of the detection switch 31.

According to the structure of this embodiment, the detection of the mounting of the normal position to the tray 20 of the cartridge 1 is also used by the member which hold | maintains the cartridge 1, and it is not necessary to install the drive means of a detection switch separately, and the number of parts Need not be increased, and the cost of the optical disc recording / reproducing apparatus can be reduced.

EMBODIMENT OF THE INVENTION Hereinafter, 11th Embodiment of this invention is described, referring drawings. In addition, the disk loading apparatus of the present invention can be used in horizontal and vertical mounting and in vertical mounting with openings upward. In the present embodiment, the following description will be made in a state where the disk loading apparatus is horizontally installed.

In the present invention, a playback disc such as a music CD or a DVD-ROM and a recording disc such as a DVD-RAM are handled with a diameter of 8 cm and a diameter of 12 cm. These are collectively called only disks. What is considered in the loading mechanism is the form of the media, and the recording / playback method and the recording density are not limited to the above examples.

Hereinafter, a description will be given of a loading device that handles both a disk of different sizes, such as 12 cm and 8 cm, and a cartridge storing the disk. First, the whole structure of a disc loading apparatus is demonstrated, and the structure of each part is continued in detail.

Since the mechanical configuration of the eleventh embodiment of the present invention is the same as that of the first embodiment of FIG. 1 to FIG. 7 and overlaps, the description thereof is omitted, and the electrical configuration and operation of the disk loading apparatus are shown in FIGS. 47 to 51. Explain by.

Fig. 47 shows a block diagram of the disk loading apparatus of the present embodiment, which is provided on the circuit board 120. Figs. That is, the laser drive circuit 430 operates to irradiate the disk 10 with the laser from the optical pickup (optical head) 99, receive the signal from the disk 10 from the light receiving portion of the optical head, and reproduce the signal processing circuit. Process by 431. 432 is a modulation demodulation circuit, 433 is a RAM of memory, 434 is a central processing unit (MPU), and 435 is a personal computer (PC). The optical head is equipped with a temperature sensor, and measures the temperature in the vicinity of the recording film of the disk 10.

436 is a PWM drive circuit of the motor system. PWM stands for Pulse Wave Modulation. For example, as shown in part (a) of FIG. 48, a constant voltage is supplied in the form of a pulse and the supply width of the pulse is changed. As described above, the driving circuit can supply the loading motor 61 with the current corresponding to the integral of the supply pulse in accordance with the supply width.

If the PWM drive circuit can finely set the drive current of the motor 61, and if the current supply profile is set to firmware, not only the change of the circuit constant or the change of the drive mechanism is necessary, but also the operation sound It can be used to reduce or improve the reliability of the device.

In general, the lower the sound of the loading operation during actual use, the lower the torque and the pump specification of the loading mechanism, assuming a standard disk. However, the disk cannot be transported because of a lack of torque at abnormal disks or at low temperatures. There is a problem.

In the present invention, the above-mentioned problems are solved by changing the specifications of the firmware out of the load / eject operation at the guaranteed temperature and at a low temperature (for example, 5 degrees or less) at which the load of the loading mechanism increases due to the temperature environment. The temperature measurement for the conversion uses a temperature sensor of the optical head.

49 and 50 show the profile of the PWM driving circuit at the time of loading and ejecting the disk loading apparatus of the present invention. The vertical axis represents the pulse supply amount of the PWM drive circuit with respect to the reference voltage, and the horizontal axis represents the operation time. Therefore, the profile shows the relationship of speed to elapsed time. For example, when there is a pulse supply amount of 50% at the reference voltage 12V, the current at the time of 6V constant voltage driving is applied to the motor. Duty (%) of PWM drive is a relationship of X <A <B <C <D <E.

Part (a) of Figure 49 shows the profile of the PWM drive circuit at the time of loading within the guaranteed temperature range (normally used temperature). (a1) is a normal loading operation, and during loading of the disk, it is necessary to increase the pulse supply amount from A% to B% and then to reduce the loading sound by fixing B%. To eliminate this, the pulse supply amount at the time of disk clamp Tc is made X% of the minimum value. Subsequently, in the traverse base movement (TB lifting operation) which requires a large force and ends immediately, the pulse supply amount is gradually increased, for example, linearly from X% to C%. Te represents the loading completion time. After that, it corresponds to the high load loading described below, and the increase in the pulse supply amount is continuously increased after the time point Te to the C% of the time point T, and further increases from the C% to the E% time to be a timeout at time 2T. have.

(a2) is a high load loading operation. The disk loading operation starts from A% to the pulse supply amount C%, and the TB lifting operation is set to E%. The shutter opening / closing operation of the cartridge 1 depends on the environmental temperature due to warpage or temperature shrinkage when the cartridge 1 or the shutter is a molded article, and thus becomes a large load during disc conveyance. In addition, the change in the lapse of time causes an increase in the sliding load of the cartridge 1 and the shutter and slipping between the belt and the pulley of the loading mechanism, so that the transmission torque is lowered, resulting in a large load during disc conveyance.

In such a disk carrying operation at high load due to the cartridge conveyance, the disk which was not able to be loaded at the original B% also shifts to C% over time, so that the disk can be loaded without discomfort and the TB lifting operation is performed at E%. By losing, the configuration which does not cause trouble in practical use can be taken.

At this time, the timeout is set to be two or more times the normal loading time, and the pulse supply amount at the timeout is set to C% and then set to be the highest at E%.

Part (b) of Figure 49 shows the profile of the PWM drive circuit at the time of loading outside the guaranteed temperature. The temporal variation pattern of the profile is almost the same as in part (a) of Fig. 49, but the duty time and the operation time at each duty ratio are different.

(b1) is a normal loading operation. It is assumed that the disk is put out early in the morning of midwinter, and the pulse supply amount of C% is greater than the B% of (al) starting from the pulse supply amount B% of PWM at the guaranteed temperature. The time point Tc at the time of the disc clamp is set to A% which is larger than X% of (al). After that, it gradually increases to D%, but Te at the middle becomes loading completion point.

In general, since the load of the loading mechanism at low temperature is 1.5 times larger than at normal temperature, the predetermined time of D% is set to 2T and the timeout is set to 4T, which is at least four times the normal loading time within the guaranteed temperature. Setting.

(b2) is a high load loading operation and corresponds to (a2), but after the time point Te, the disk loading operation is performed as D% because the increase in pulse supply amount exceeds B% to C%.

In this way, the timeout is set to be twice or more than the normal loading time outside the guaranteed temperature, and the pulse supply amount at the timeout is set to be the highest at E% via D%.

Part (a) of Figure 50 shows the profile of the PWM drive circuit during ejection within the guaranteed temperature.

(a3) is a normal eject operation. By the time Tc is released from the clamper and the disc, the pulse supply amount is set to A% of the minimum value to reduce the noise of the clamper release sound, and the traverse bass movement, which requires a large force, is terminated in an instant, from A% to C%. It is carried out until it raises, disc carrying out operation is performed at B%, and reduction of a loading sound is aimed at. At the time Te, the disk ejection operation is completed. Thereafter, it corresponds to the high load eject operation, and raises from B% to C% and also to E%. The timeout is 2T with respect to the predetermined time point T at the pulse supply amount C%.

(a4) is a high load eject operation. In the eject operation at high load, the TB lifting operation is performed at A%, B%, and C%, and the disk ejection operation is performed at C%, D%, and E%, so that the disc can be ejected without discomfort. The configuration which does not cause trouble can be taken.

In this way, the timeout is set to be twice or more than the normal ejection time, and the pulse supply amount at the timeout is set to be the highest.

Part (b) of FIG. 50 shows the profile of the PWM drive circuit during ejection outside the guaranteed temperature.

(b3) is a normal eject operation. It is assumed that the disk is put out early in the morning of midwinter and is larger than the pulse supply of PWM at the guaranteed temperature. First, the pulse supply amount is set at B% until the time point Tc at which the clamper and the disk are released, and the noise of the clamper release sound is lowered to give priority to reliability. The TB raising and lowering operation is also performed at B%, and the disk ejecting operation is performed at D%. The time point Te represents the completion of the eject. After that, high load is supported, and the D% is continued until a predetermined time point exceeding the time point 2T, and then the time is increased to the time point E at the time point 4T.

In general, the load of the loading mechanism at low temperature is increased by 1.5 times or more at room temperature. Thus, the timeout is set at 4 times or more than the normal ejection time.

(b4) is an eject operation at high load. The TB lifting operation is performed at B% and D%, and the disk is ejected at D% and E% from around 2T.

12 shows a control system. The above shows the profiles for each temperature and media, but this is a profile learning control device for changing the profile according to individual differences, changes over time, etc., and the driving circuit 436 for driving the loading motor 61 and the driving time are measured. A measuring means, a detection SW (switch) for detecting the completion of loading or unloading of the tray, cartridge or disk, that is, the completion of loading, the control means for controlling the driving voltage according to a predetermined profile, and the driving process number for detecting the loading completion. And calculation means for executing a predetermined calculation process according to the measurement time. The control means adjusts the driving time according to the calculation result of the calculation means and converges it to the &quot; end position when the profile of the noise of the clamper sound is low &quot;

The computing means may include, for example, measurement means, and these comprise the MPU 434 and the PC 435. This calculating means assigns a drive process number to a drive profile according to the drive profile of part (a) of FIG. 49 as shown in part (b) of FIG. If the drive process number at the time of end detection is larger than the optimum number of the previously obtained drive process number, the value of the main drive time T is increased, and if it is less than the optimal number, the value of T is reduced. In particular, selecting an inflection point for engaging or disengaging with the disk when the disk is held by the clamper on the turntable constituting the holding means can reduce the noise generated when the clamp mechanism releases the media.

51 (b), an example is explained in full detail, and it divides for every flat part and inclination part of a profile at the inflection point of the drive profile at the time of a load, and divides the inclination part between inflection points P and Q every predetermined time, Drive process numbers are assigned in order from the smallest viewpoint. The range in which the profile is deformed is taken as the drive time T of the drive processing number 2. Then, the driving time T is adjusted so that Te is in the period of the driving process number 5 when the loading is detected by the detection switch of FIG.

In this case, the calculating means may be configured to assign a value xt unique to each number to a drive process number x other than the optimum number N, and add xt to T when the drive process number x ends. If x is less than or equal to the optimal number, a negative value is taken. The driving process number at the time of completion detection and the addition time to T are controlled by the following Table 1. In this case, the drive process number 5 is calculated | required previously as an end position at the time of the profile with a low noise of a clamper sound. That is, N = 5, xt = t1 to t4, t6 to t9, t1 <t2 <t3 <t4, t6 <t7 <t8 <t9. Table 2 has shown the specific numerical value of addition time.

Drive Process Number One 2 3 4 5 6 7 8 9 Addition time to T t1 t2 t3 t4 t5 t6 t7 t8 t9

t1 <t2 <t3 <t4 <t5 <t6 <t7 <t8 <t9

Addition time to drive process number and T Drive Process Number One 2 3 4 5 6 7 8 9 Addition time to T -300 -200 -100 -50 0 +50 +100 +200 +300

Alternatively, the calculating means may be realized by multiplying the coefficient A time by the difference (x-N) between the end number x and the optimum number N and adding it to T.                 

In addition, the initial value of the main drive time T can be switched here by the input of the cartridge detection switch or the measurement temperature to form a profile corresponding to the difference of the media and the change of temperature.

One embodiment of the operation will be described. According to a predetermined profile, the control means drives the motor 61 through the drive circuit. Currently, when an input from the loading completion detection switch is received while driving with the drive process number 7, t7 is added to the execution time T of the drive process number 2 by the calculating means. The next time the load drive is executed, since the execution time of the drive process number 2 is long, the detection switch performs completion detection with a number of 7 or less. Next, if the drive process No. 6 detects completion, t6 is added to T at this time. Similarly, the next time the drive process is executed, completion detection is performed with a number of 6 or less. In this way, by controlling the time T of the drive process number 2 so as to detect completion of the "lowest clamping sound" drive process number, for example, number 5, which has been examined in advance, mechanism control with good temperature stability is realized.

Next, the change of the profile at the time of carrying out operation is shown in part (c) of FIG. 51, but similarly to part (b) of FIG. 51, the flat part and the inclined part are divided for each inflection point of the profile, and a predetermined unit is defined between the inflection points PQ. The driving process numbers are assigned in order by the time intervals. The range in which the profile is deformed is referred to as the drive time T of the drive processing number 1. Then, as in the case of loading, the drive time T is adjusted so that the disk discharge completion time Te is in the period of the drive processing number 6. Thereby, by controlling the time T of the drive process No. 1 at the time of carrying out operation | movement, it can implement | achieve temperature regulation similarly to loading.

As described above, since the profile can be changed in accordance with the actual measurement time of the loading operation or the eject operation, the following silent operation is possible. In other words, the profile which does not make noise at the time of the clamper adsorption at the time of loading a media is calculated | required in advance, and the time when loading is measured, and the clamper 84 is inserted into the disk 10 couple | bonded with the spindle motor 90. By learning-controlling timing, the impact sound produced by the adsorption force of the magnet and magnetic body which generate | occur | produces by a disk clamp can be reduced. Moreover, the noise effect can be exhibited regardless of the difference in the loading timing of the loading mechanism and the clamp timing due to the change over time.

In addition, a cartridge detecting means is provided in the tray 20, and when the medium is attached to the tray, it is discriminated whether it is a cartridge or a non-cartridge. At this time, the standard profile which minimizes the noise at the time of the clamper adsorption at the time of loading in each case is calculated | required previously. And by measuring the time at the time of loading and learning-controlling the timing which clamper inserts the disc combined with the spindle motor, it prevents the delay of the loading learning effect when another medium is mounted in a tray, The impact sound generated by the adsorption force of the generated magnet and the magnetic body can be reduced.

In the same manner as described above, a profile in which noise is not generated when the media is ejected and the clamper is removed is measured in advance, the time during ejection is measured, and the clamper 84 is fitted with the disk 10 coupled with the spindle motor 90. By learning-controlling the timing to be put, the impact sound generated when releasing the adsorption force between the magnet and the magnetic body generated by the disk clamp can be reduced. Moreover, the noise effect can be exhibited irrespective of the individual difference of the loading mechanism or the difference of clamp timing due to the change over time.

Also in this case, as in the case of loading, the cartridge detecting means is provided in the tray, and when the media is loaded in the tray, the cartridge is distinguished from the cartridge or non-cartridge. The standard profile that minimizes noise is measured in advance, and the time of ejection is measured to control the timing at which the clamper is inserted into the disk combined with the spindle motor. It is possible to prevent the delay and to reduce the impact sound generated by the adsorption force of the magnet and the magnetic body generated by the disk clamp without any discomfort.

The cartridge detecting means may be provided on either the cartridge or the mechanism chassis side.

In this embodiment, the time-out of the disc transfer time is set to a specification that takes more than twice the standard time in the above-described PWM profile, and raises the drive duty of the PWM at the end of loading and at the end of the ejection. It is possible to increase the reliability of the loading operation against increasing the load.

In addition, when the temperature sensor is installed in the drive and the temperature is lower than the operation guarantee temperature, a load specification for operating at a power-up PWM profile that is different from the PWM profile of the silent mode is used to load the load at a cold start such as early winter morning. By increasing the rotational speed of the motor to increase the torque, the torque can be secured, and the reliability of the loading operation against the aging change of the rubber or the belt and the increase of the load of the mechanical part can be improved.                 

In addition, in the present invention, the detection means for completing the loading and unloading of the disk is not limited to mechanical detection. For example, physical detection such as electric detection or magnetic detection such as a change in the current of the motor is possible.

In addition, the media discrimination means is not limited to mechanical discrimination, and physical detection of electricity or the like is possible.

The change in the profile may also be caused by a change in the magnitude of the current supplied to the motor, without being limited to the change in the length of the operation time.

(Twelfth Embodiment)

Hereinafter, the cartridge positioning mechanism of the twelfth embodiment of the present invention is the same as that described in the fourth embodiment, and description is omitted to avoid duplication. In this case, according to the twelfth embodiment, the following effects are obtained. That is, as the cartridge positioning means, the alignment pins 102 described in the fourth embodiment do not exist on both the left and right sides of the cartridge 1, and the alignment pins 102 exist only on the left side.

When the cartridge 1 is mounted on the tray 20 and the loading operation is started, the opener 29 is coupled to the tip of the shutter 2 of the cartridge 1 to load while opening the shutter 2 to the left. .

At this time, a pressing force is generated in the cartridge 1 by the reaction force of the spring of the shutter 2, and the cartridge 1 is pressed against the left wall surface 25 of the tray 20.

The tray 20 has a left wall surface 25 and a right wall surface 26 serving as left and right guides on the left and right sides of the cartridge 1, but the maximum width of the cartridge 1 is large because the width of the cartridge 1 varies. The above-described cartridge mounting surface 21 is configured by the tray 20 in the positional relationship between the left wall 25 and the right wall 26.

After the loading of the tray 20 is completed, the alignment pin 102 is raised by the movement of the slide cam 100 and engages with the positioning hole 3 on the left side of the cartridge 1. The cartridge 1 is positioned by fixing two positions of the left wall surface 25 of the tray 20 and the alignment pin 102 on the left side.

The guide shaft 41 is provided in the lower surface of the tray 20, and is hold | maintained by the engaging hole of the shaft holder 42 formed in the mechanism chassis 60. As shown in FIG. For this reason, although the tray 20 is able to load or drive the ejection of the mechanism chassis 60 without a left or right rattling, the guide shaft also with respect to the positioning reference of the cartridge 1 with respect to the tray 20. The configuration by the 41 and the shaft holder 42 is effective. The positioning reference of the cartridge 1 of the tray 20 is set to the left side on which the shutter 2 of the cartridge 1 is opened, and the right side is provided with a margin of width dimension so that a gap is always created. By setting the positioning criteria of the tray 20, the cartridge 1 is virtually eliminated from the left and right directions with respect to the tray 20, and the alignment pins 102 of the cartridge 1 Insertion into the positioning hole 3 and the positioning operation is substantially only in the front-rear direction.

Therefore, the above structure makes it possible to obtain the same effect as the arrangement in which the alignment pin 102 engages the two right and left positioning holes 3 of the cartridge 1.

In addition, the cartridge positioning mechanism of the optical disk apparatus of the modified embodiment of the present embodiment will be described with reference to FIGS. 53 to 55. That is, the alignment pins 102 and 102 'are provided not only on one side but also on both left and right sides as in the twelfth embodiment, and are positioned and fitted in the holes 3 formed on the left and right sides of the cartridge 1. The alignment pin piece 102A forms the alignment pin 102 'at the distal end of the arm 102b extending in the opposite direction to the alignment pin 102. As shown in FIG.

In each of the above embodiments, the positioning means can be configured not only to the front and rear, but also to the left and right of the chassis so that the positional accuracy can be further improved. It is also possible to provide a positioning mechanism for positioning the traverse base back and forth or left and right with respect to the chassis. The front and rear left and right adjustment of the traverse base enables the accuracy of positioning of the cartridge to be improved.

The loading mechanism of the thirteenth embodiment of the present invention will be described with reference to Figs. 1 to 4, 36 to 38, 41 to 44, and 56. Figs. 1 shows an optical disc recording and reproducing apparatus to which the thirteenth embodiment of the present invention is applied. In Fig. 1, reference numeral 20 denotes a tray which is, for example, a tray containing a cartridge containing an optical disc and a single optical disc (not shown), and 140 is a main body of the optical disc recording and reproducing apparatus.

In the main body 140, 60 is a box-shaped box made of synthetic resin having both sidewalls, and 70 is a traverse holder, one end of which is supported by the chassis 60 so as to be movable, and the other 82 to the traverse holder 70. A traverse base held through the vibration absorption damper 71 and having a recording / playback mechanism, 83 is a top cover attached to the chassis 70 and covered by the traverse base 82, and 85 is a control attached to the lower side of the chassis 60. The circuit board.

The chassis 60 is provided with a loading motor 61 and a loading gear system 66 which are driving means of the tray 20 inside the opening 60a for carrying in and unloading the tray 20.

The traverse base 82 includes a spindle motor 90 for holding and rotating an optical disk, an optical pickup 99 for reading information on the disk 10 or recording information on the disk, and an optical pickup 99 in the radial direction of the optical disk. The lead screw 95 which moves the traverse motor 94 which moves, and the optical pickup 99 is hold | maintained.

The upper cover 83 supports an intermediate portion of the clamper 84 that clamps the optical disk to the spindle motor 90, and spring-presses the front end side of the spindle motor 90 so that the optical disk is released from the spindle motor 90. The disk is fixed to the turntable of the spindle motor 90 by the clamper 84 when it is mounted on the.

On the front side of the traverse holder 82, a slide cam 100 that engages with the mechanism chassis 60 is provided to be movable in the horizontal direction. The slide cam 100 is guided to the guide cam groove 249 (see FIG. 4) on the rear surface of the tray 20 to reciprocate a predetermined range in conjunction with the loading operation and the ejecting operation of the tray 20. It has a rack gear in front of the slide cam 100, and is driven left and right by the intermediate gear of the loading gear system 66 in the predetermined range after interlocking with the loading operation of the tray 20. As shown in FIG. At this time, the slide cam 100 is moved left and right, so that the traverse holder 82, the alignment pin 102, and the detection lever 106 are driven in the vertical direction, and move in response to the operation of the detection lever 106 to detect the state. The pin 107 is configured to operate in the vertical direction.

2 shows a tray 20 and a cartridge holder 27. In the center of the cartridge mounting surface 21 of the tray 20, two large and small concave parts formed concentrically are formed. The large-diameter recesses are prepared by the large-diameter disk mounting section 22 and the small-diameter recesses on the small-diameter disk mounting section 23 in accordance with the outer diameter of the single disk mounted on the main body 140 of the disk recording / reproducing apparatus.

The outside of the cartridge 1 (FIG. 41) is approximately half the length of the tray 20 on both the left and right sides of the tray 20 in the loading and unloading direction of the tray 20. It is slightly larger than the dimension, and the left wall surface 25 and the right wall surface 26 are formed perpendicularly to the cartridge mounting surface 21, and have a function as a guide member at the time of mounting the cartridge 1 on the tray 20. have. In addition, an opening 30 is formed in a part of the left wall surface 25 and the right wall surface 26, and the positions on the left and right sides of the loading or unloading direction axis passing through the center of the cartridge 1, for example, the left and right sides The cartridge holder 27, which is a holding member of the cartridge holding means that engages with the engaged portion 6 (see Fig. 42) formed in the concave shape on the inner side in the carrying-in direction, is the inner side of the left wall surface 25 and the right wall surface 26. Installed in

The front surface of the tray 20 and the front side of the wall surfaces 25 and 26 on both sides are not provided with a wall surface perpendicular to the cartridge mounting surface. For this reason, the obstacle at the time of mounting the cartridge 1 in the tray 20 is eliminated. In addition, the front edge of the tray 20 is formed in a convex curved surface, and since the cartridge 1 is a flat rectangular body, both rear ends of the cartridge are more than the tray 20 in the mounted state on the tray 20.

Part (b) of FIG. 2 shows the cartridge holder 27, and is immersably coupled to the concave to-be-engaged portion 6 positioned at both the left and right sides of the carrying or unloading direction axis passing through the center of the cartridge 1. . The cartridge 27 is an elongated shape made of synthetic resin and is bent in a substantially Z shape so that its middle portion forms a stepped phase, and the shaft hole 27a is formed in a direction perpendicular to the step bending direction in the middle portion thereof. The shaft hole 27a is fitted to the pin 28 provided outside the cartridge mounting range on the left side 25 and the right side 26 of the cartridge mounting surface 21, so as to be rotatable about the pin 28. Maintained. In addition, the cartridge holder 27 extends within the cartridge mounting range with a convex engaging portion 27b that is formed in, for example, a substantially triangular shape that engages with the engaged portion 6 of the cartridge 1 at the distal end side of the step. The spring receiving protrusion 27c is formed in the same direction with the engaging part 27b at the front-end | tip of the step rise side opposite to this, and the protrusion 37 (FIG. 36) is provided in the tray 20 side opposite to this. And the coupling part 27b is pressurized in the direction which holds the to-be-engaged part 6 of the cartridge 1, and is preloaded through the coil spring 49 so that both ends may fit in these. The stopper 31 (FIG. 36) of the cartridge holder 25 with respect to the spring force of the coil spring 49 is provided in the position on the opposite side to the spring bearing protrusion 27c of the tray 20. As shown in FIG. Moreover, the step-falling side portion of the cartridge holder 27 from the hole 27a of the cartridge holder 27 on the engaging portion 27b side enters the opening 30 in the state where the cartridge holder 25 is supported by the stopper 31. The side surface 27d is set to be substantially flush with the inner surfaces of the wall surfaces 25 and 26, so that only the engaging portion 27b protrudes within the cartridge mounting range. This avoids the tray 20 becoming wide.

On the inner side of the tray 20, an opener 29, which is an opening and closing means for opening and closing the shutter 2 of the cartridge 1, is provided to be movable in the left and right directions. The opener 29 is configured to operate in conjunction with the loading operation of the tray 20 so that the loading is performed while opening the projection of the shutter opener 29 to the left side of the projection at the tip of the shutter 2. In this case, the guide cam groove of the opener 29 is formed in the main body 140 or the upper cover side so that the operation of the opener 29 may be linked to the carry-in / out operation of the tray 20. Alternatively, when the cartridge 1 is attached to the tray 20, a means for driving the opener 29 to open the shutter may be provided. The optical disc housed in the cartridge 1 can be rotated by the spindle motor 90 and recorded and reproduced by the optical pickup 99 when the shutter 2 is opened.

4 shows a rear surface of the tray 20, and on one side thereof, a rack gear 40 that engages with the drive gear 66a of the loading gear system 66 is provided. The tray 20 is configured to be loaded and ejected by changing the rotational direction of the loading motor 61. Similarly, in the vicinity of the rack gear 40 on the back of the tray, a metal guide shaft 41 constituting the holding means of the tray 20 in parallel with it is held at the front and rear ends of the tray 20, and the guide shaft 41 ) Is held in the mechanism chassis 60 via the shaft holder 42 bearing the bearing). One end of the guide shaft 41 is inserted into the bottomed hole 231 of the support 230 protruding from the rear surface of the tray 20, and the other end of the guide shaft 41 protrudes from the rear surface of the tray 20. The screw 233 with a head is screwed into the screw hole formed in the side of the recessed part 232, and it presses in the head and fixes it. The tray 20 forms guide step portions 20c and 20d approximately half the height of the cartridge mounting surface 21 on both sides of the cartridge mounting surface 21. The shaft holder 42 is provided with a pair of cylindrical support portions 42a fitted to the guide shaft 41 so as to be slidably spaced apart from each other, and the length of the guide shaft 41 of the portion bulged from the side of the tray 20. In order to form the positioning holes 42b at both ends in the direction, to form the attachment holes 42c therebetween, and to prevent the shaft holder 42 from shaking when assembling the tray 20 to the main body 140. As shown in Fig. 8, the hook-shaped locking portion 42e hanging on the guide step 20d is projected. On the other hand, as shown in FIG. 36, in the apparatus main body 140, the accommodating part 140a for accommodating the shaft holder 42 is provided in the position near the front of one side, and is located in the bottom surface in the accommodating part 140a. Positioning projections (not shown) fitted to the crystal holes 42b and screw holes (not shown) matching with the attachment holes 42c are formed and attached by screws (not shown). On the other hand, the other side of the tray 20 is slidably mounted on the guide jaw portion 63 (FIG. 1) formed on the inner side of the box-shaped mechanism chassis 60, and as shown in FIG. 4, for example, a mechanism chassis ( 60 is formed between a pair of parallel slits formed on the side wall of the side wall, and is slidably coupled to the guide step portion 20c by a claw-like pressing portion 104 provided to protrude from the inner surface of the side wall with resin elasticity. The operation away from the grandfather 63 is prevented. Therefore, if the tray 20 is inserted into the apparatus main body 140, the shaft holder 42 is positioned and attached, and the other side of the tray 20 is pressed against the pressing part 104 to support the guide jaw 63. It is attached.

36 and 41 are the loading state of the tray 20, the tray 20 is positioned so that the spindle motor 90 is located in the center of the optical disk, and a while ago, the slide cam 100 is loaded with the loading gear system ( Driven by 66), the alignment pin 102 protrudes through the hole 20a formed in the tray 20 and fits into the positioning hole formed in the cartridge 1. The cartridge 1, which is substantially regulated in front, back, left, and right of the tray 20 by this fitting operation, is finally positioned with respect to the tray 20 and the spindle motor 90. In addition, the traverse base 82 is moved so that the spindle motor 90 and the optical pickup 99 approach the optical disc of the cartridge 1 mounted on the tray 20 from the central opening 20b of the tray 20. In accordance with the traverse of the traverse base 82, the center of the cartridge 1 is pressed against the tray 20 by the force of the spring 143a attached to it by the push lever 143, while pressing the clamper protruding from the tray 20. The front end side of the clamper 84 approaches the optical disk by pressing the rear end of the clamper 84 by the unit 130, and the optical disk is clamped on the turntable of the spindle motor 90. On the other hand, the front end of the tray 20 at the loading position of the tray 20 is located inside the opening 60a of the chassis 60 and moves in response to the operation of the detection lever 106 near the loading completion. On the front end side of the cartridge 20, the state detection pins 107 for detecting the front and back of the cartridge 1 and for detecting the recordable state are projected toward the cartridge 1, and correspondingly to the cartridge 1 A back surface detection hole and a recordable detection hole (not shown) are formed.

37 and 38 show an ejected state of the tray 20, and the tray 20 is carried out by driving the loading motor 61 in the opposite direction as when loading. At this time, the slide cam 100 meshing with the loading gear system 66 is operated to lower the detection lever 106, the alignment pin 102, and the traverse base 82, and detect the state by the detection lever 106. The pin 107 is also lowered, the push lever 143 is raised to enable the movement of the tray 20, the clamper 84 is dropped when the tray 20 starts to move.

The operation of the main body 140 of the disc recording / reproducing apparatus configured as described above will be described taking the case of reproducing the optical disc stored in the cartridge 1 as an example.

42 to 43 show a case where the cartridge 1 is mounted in the tray 20, and the disc recording / playback apparatus main body 140 is placed on the cartridge mounting surface 21 in front of the tray 20. The cartridge 1 is slid in the direction of being pushed into it.

The tip of the engaging portion 27b serving as the protrusion of the cartridge holder 27 while the left and right end surfaces of the cartridge 1 are pushed into the tray 20 with the left wall 25 and the right wall 26 as guides. Since the shape has an inclined surface, the cartridge 1 is easily opened by the insertion force of the cartridge 1.

FIG. 44 shows a state in which the cartridge 1 is further inserted so that the engaging portion 27b of the cartridge holder 27 immerses and engages the engaged portion 6 of the cartridge 1 at the pressing force of the coil spring 49. Indicates. At this time, the operator can recognize that the coupling is completed by the change in the insertion force and the sound generated when the cartridge holder 47 is engaged.

On the inner side of the cartridge mounting surface 21, a stopper 35 for regulating the insertion limit of the cartridge 1 is provided, and the coupling position between the cartridge 1 and the cartridge holder 27 and the stopper 35 are provided. The insertion limit is almost identical. This completes the mounting of the cartridge 1 on the tray 20. At this time, movement of the cartridge 1 in the front-rear direction, the left wall surface 25 and the right wall surface 26 by the cartridge holder 27 is almost restricted in the left-right direction.                 

In the case of the manual loading operation, if the insertion force is continuously applied to the cartridge 1 continuously in this state, the insertion force is transmitted to the tray 20 through the stopper 35, and the tray 20 is manually loaded. The disc recording and reproducing apparatus main body 140 is disclosed.

While the tray 20 is being manually loaded, a signal passing through the tray is detected at the eject end SW (not shown) of the tray, and a driving voltage is given to the loading motor 61, and the rotation of the loading motor 61 is caused. By the rotation of the driven drive gear 66, the tray 20 automatically starts the loading operation.

Here, when comparing the magnitude of the insertion force of the cartridge 1 to the cartridge holder 47 and the manual loading force of the tray 20 as described above,

Cartridge insertion force <manual loading force

By setting the spring constant and preload force of the coil spring 49 that presses the cartridge holder 27 so that the relationship between the two is established, the tray 20 can be manually operated after the mounting of the cartridge 1 on the tray 20 is completed. The loading by is performed.

If the force relationship is reversed, before the insertion of the cartridge 1 into the cartridge holder 47 is completed, the loading of the tray 20 is started, and the clamp miss of the disc 10 accommodated in the cartridge 1 is started. Occurs.

On the other hand, in the case of the automatic loading operation, when the loading of the cartridge 1 on the tray 20 is completed, the loading SW (not shown) of the disc recording / playback apparatus 140 is turned ON so that the loading motor 61 is turned on. Given the drive voltage, the tray 20 automatically starts the loading operation by the rotation of the drive gear 66 which is driven by the rotation of the loading motor 61.                 

According to the configuration of the present embodiment, after the cartridge 1 is mounted on the tray 20, the cartridge mounting surface 21 is used when the tray 20 and the cartridge 1 are loaded into the optical disc recording / reproducing apparatus main body 140. ) The loading operation is completed by inserting the image onto the cartridge 1 so as to slide and continuing the insertion force as it is. In other words, in the conventional disc recording / reproducing apparatus, the operation of mounting the cartridge 1 and loading of the tray 20 has been achieved in a plurality of operations only by the insertion operation of the cartridge 1.

In addition, since generally a tray having only a single optical disc and a tray of substantially the same shape can be adopted, there is no discomfort in operability when mounting the single disc in the tray. In addition, since the front wall is eliminated, the degree of freedom in the design of the tray is improved. For example, a high-quality design for the purpose of a design effect can be adopted from a design that focuses on the function.

In addition, the shaft 41 and the shaft holder 42 make it possible to secure the stability when the cartridge 1 is mounted on the tray 20 and the positional accuracy of the cartridge with respect to the traverse base when the loading is completed. At the same time, the tray 20 cannot be conveyed in a state of tilting to one side at the time of loading and ejecting due to the load of opening and closing the shutter of the cartridge 1, thereby improving the quality of the tray operation.

In this case, the operation of mounting the cartridge to the tray 20 also in the loading mechanism of the method of opening the shutter of the cartridge 1 at the time of mounting, or of the loading mechanism of opening and closing the shutter in synchronism with the carrying-in operation of the tray 20. Both stability and operational certainty in loading and ejecting can be improved.                 

As a result, with a simple configuration, it is possible to improve the quality by preventing the operation stability of the cartridge mounting on the tray 20 and the tray rattling in the loading and ejecting operation of the cartridge, and at the same time controlling the position in the cartridge width direction during loading. This makes it possible to increase the reliability of the loading mechanism.

Moreover, when the shaft 41 is comprised in the tray 20, it also has the advantage that the drive apparatus can be made thin and small.

In addition, in this embodiment, although the set of the shaft and the shaft bearing was arrange | positioned at one side of a tray, even if two sets of shaft and a shaft bearing are provided in the both sides of a tray, the same operation | movement and an effect can be acquired.

(Embodiment 14)

A fourteenth embodiment of the present invention will be described with reference to FIG. That is, only the attachment structure of the shaft 41 and the shaft holder 42 differs from 13th Embodiment. Specifically, the shaft holder 42 is attached to the tray 20, and the shaft 41 is attached to the mechanism chassis which is the main body 140.

The configuration and loading operation of the other components are the same as those of the first embodiment, and in addition to the same effects, the guide shaft 41 is provided in the mechanism chassis 60 so as not to be restricted by the thickness of the tray 20.

In this embodiment, although one set of shafts and shaft bearings were arranged on one side of the tray, even if two sets of shafts and shaft bearings are provided on both sides of the tray, the same operation and effects can be obtained.                 

(Embodiment 15)

The cartridge holding mechanism of the fifteenth embodiment of the present invention will be explained with reference to Figs. 1 to 4, 36 and 42 to Fig. 44. That is, this embodiment is the same as that of the thirteenth embodiment, and description thereof is omitted to avoid duplication. Therefore, the operation of the cartridge holder 27 in the case of the irregular mounting in which the front and rear of the cartridge 1 is mounted in the tray 20 in the reverse direction will be described with reference to FIG.

As in the case of the normal mounting, the cartridge 1 is slid in the direction of pushing the cartridge mounting surface 21 onto the disc recording and reproducing apparatus main body 140 in front of the tray 20. While the left and right end surfaces of the cartridge 1 are pushed into the tray 20 using the left wall surface 25 and the right wall surface 26 as guides, the tip of the engaging portion 27b of the cartridge holder 27 is a cartridge. It is easily opened by the insertion force of (1). When the cartridge 1 is further inserted, the engaging portion 27b of the cartridge holder 47 slides along the left and right ends of the cartridge 1 in an open state because there is no engaged portion 6 of the cartridge 1. Getting lost Even when the cartridge 1 reaches the position of the stopper 35 for regulating the insertion limit, the cartridge holder 27 remains open.

When loading SW is turned ON in a state where the cartridge 1 is irregularly mounted on the tray 20, the tray 20 is loaded into the disc recording / reproducing apparatus 140. However, during the loading of the tray 20, since the cartridge holder 27 is opened outward from the left and right sides of the tray 20 in the open state, the passage of the tray 20 of the disc recording / reproducing apparatus 140 is prevented. Since the open state of the cartridge holder 27 is wider than the width of the opening 60a for the width direction, the engaging portion 27b of the cartridge holder 47 and the opening 60a interfere with each other. The loading operation stops on the way.

The loading motor 61 detects a sudden increase in the driving load caused by the interference of the cartridge holder 27 and the opening 60a, and stops the loading operation of the tray 20, after which the loading motor 61 rotates in reverse. To change the eject operation of the tray 20.

In this way, the operator recognizes the irregular mounting of the cartridge 1 because the cartridge 1 which has been loaded and loaded on the tray 20 has been unexpectedly ejected.

In the structure of this embodiment, after mounting the cartridge 1 in the tray 20, when loading the tray 20 and the cartridge 1 into the optical disc recording / reproducing apparatus main body 140, the cartridge mounting surface 21 ) The loading operation is completed by inserting the image onto the cartridge 1 so as to slide and continuing the insertion force as it is. In other words, in the conventional disc recording / reproducing apparatus, the operation of mounting the cartridge 1 and loading of the tray 20 has been achieved in a plurality of operations only by the insertion operation of the cartridge 1.

In addition, in the conventional disc recording / reproducing apparatus, since the box shape has a front wall surface for positioning the cartridge with respect to the tray, there is a feeling of discomfort in the operation of mounting the disk on the tray while avoiding the front wall surface when mounting a single disk on the tray. It was happening. However, since the tray 20 of the present embodiment can generally adopt a tray having only a single optical disc and a tray of substantially the same shape, there is no discomfort in operability when mounting the single disc in the tray. . In addition, the elimination of the front wall improves the degree of freedom in the design of the tray. For example, a high-quality design for the purpose of a design effect can be adopted, for example, in a function-oriented design.

Embodiment 16

The cartridge holding mechanism of the optical disc recording / reproducing apparatus of the sixteenth embodiment of the present invention will be described. The configuration of the optical disc recording and reproducing apparatus is omitted in the places common to the fifteenth embodiment, and other configurations will be described. That is, in the cartridge mounting surface 21 of the tray 20, the cartridge holder 27 does not exist in the left and right sides of the tray 20, but the cartridge holder 27 exists only in the left side.

When the cartridge 1 is inserted into the cartridge holder 27 when the cartridge 1 is mounted in the tray 20, the pressing force of the cartridge holder 27 presses the cartridge 1 to the right wall surface 26.

Between the cartridge holder 20 and the right wall 26, the cartridge 1 is held in the tray 20. On the inner side of the tray 20, a stopper 35 is provided at a position substantially coincident with the engagement position of the cartridge 1 by the cartridge holder 27, and the cartridge holder 27 is formed of the cartridge 1. You can get almost the same behavior and effect as you have on both sides.

According to the configuration of this embodiment, the number of parts of the cartridge holder 27 is reduced, and the cost of the optical disc recording / reproducing apparatus can be reduced. In addition, since there is only one cartridge holder 27 to be opened at the time of insertion of the cartridge 27, the insertion force of the cartridge 1 is reduced than when it is on both sides. By reducing the insertion force of the cartridge 1 into the cartridge holder 21, the insertion force of the tray 20 manually can also be reduced, and the operability of the disc recording / reproducing apparatus can be improved. Moreover, the to-be-engaged part 6 can be applied to the cartridge 1 of only one side.

(Embodiment 17)

The cartridge holding mechanism of the disk apparatus of the seventeenth embodiment of the present invention will be explained with reference to FIG. The configuration common to the first embodiment will be omitted for the configuration of the optical disc recording / reproducing apparatus, and another configuration will be described with reference to FIG.

When the cartridge 1 interferes with the opening 60a in an open state when the cartridge 1 is mounted in a tray irregularly, the shape of the cartridge holder 20 is partially changed, and as shown in FIG. The same operation and effects can be obtained even when the cartridge holder 27 is used as the stopper. That is, the opening locking projection 27e is projected on the side opposite to the projecting direction of the engaging portion 27b of the cartridge holder 27. Therefore, when the cartridge 1 is unmounted on the cartridge mounting surface 21, when the cartridge holder 27 remains open as in the first embodiment, the projection 27e is largely blown out of the opening 60a. It protrudes so that it can hang to the opening part 60a of the main body 140 reliably.

(Embodiment 18)

A cartridge holding mechanism of the disk apparatus of the eighteenth embodiment of the present invention will be explained with reference to FIG. The configuration common to the fifteenth embodiment of the structure of the optical disc recording / reproducing apparatus is omitted, and another structure will be described with reference to FIG.

In FIG. 59, the engaging portion 27b of the cartridge holder 27 does not integrally form a convex protrusion, but axially supports the roller 164 by the rotation shaft. The rotation axis of the roller 164 is in a positional relationship parallel to the shaft hole 27a or the disc rotation axis, and when the cartridge 1 is inserted into the cartridge holder 27, the first of the cartridge 1 and the cartridge holder 27 Contacting becomes the roller 164. Thereafter, the roller 164 of the cartridge 1 until the roller 164 that is the engaging portion 27b of the cartridge holder 27 completes the engagement with the engaged portion 6 of the cartridge 1. Rotate while touching the left and right ends.

According to the configuration of the eighteenth embodiment, when the cartridge 1 is inserted into the cartridge holder 27, since the roller 164 rotates to reduce the frictional force with the left and right sides of the cartridge 1, Insertion force is reduced. By reducing the insertion force of the cartridge 1 into the cartridge holder 27, the insertion force of the tray manually is also reduced, and the operability of the disc recording / reproducing apparatus can be improved.

In addition, although the roller was cylindrical, substantially spherical shape may be sufficient.

(Embodiment 19)

60, the cartridge holding mechanism of the optical disk device of the nineteenth embodiment of the present invention will be described. The configuration common to the first embodiment will be omitted for the configuration of the optical disc recording and reproducing apparatus, and another configuration will be described with reference to FIG.

In Fig. 60, the cartridge holder 27 is composed of an elastic member, for example, a leaf spring. The coupling portion 27b of the cartridge 1 and the cartridge holder 27 has a curved shape by plastically deforming the tip of the leaf spring into a mountain shape. When the cartridge 1 is inserted into the cartridge holder 27, the female portion By elastically bending and deforming 174, the engaging portion 12b is opened to the left and right so that the engaging portion 27b is in contact with the left and right sides of the cartridge 1.

Thereafter, the bending deformation state of the arm portion 174 continues, and when the engaging portion 27b of the cartridge holder 172 completes engagement with the engaged portion 6 of the cartridge 1, the arm portion 174 The pressing force of is released.

According to the configuration of this embodiment, in the first embodiment, the coil spring 49 for pressurizing the cartridge holder 27 and the cartridge 1 is required, and two or more parts per set are required. However, since the cartridge holder 27 is constituted by a leaf spring, it can be realized by one component per set, so that the number of parts can be reduced and the cost of the disc recording and reproducing apparatus can be reduced.

In addition, instead of bending the tip of the elastic member, a protruding engaging member may be integrally provided with the elastic member.

Embodiment 20

61, the cartridge holding mechanism of the optical disk device of the twentieth embodiment of the present invention will be described. The configuration common to the first embodiment will be omitted for the configuration of the optical disc recording and reproducing apparatus, and another configuration will be described with reference to FIG. That is, in the fifteenth embodiment, the stopper 35 that regulates the inner end of the mounting position of the cartridge 1 of the cartridge holder 27 is constituted separately from the cartridge holder 27, but the shape of the cartridge holder 27 61 is partially changed, and as shown in FIG. 61, the same operation and effects can be obtained even when the stopper 35 is formed in the shape of the cartridge holder 27 which is integrally formed.                 

In addition, in the present invention, although the to-be-engaged portion 6 of the cartridge 1 is located on both the left and right sides, the cartridge is mounted even when located on one side or the left and right of the import or export direction axis line passing through the center of the tray. The cartridge holder 27 can be formed on the tray 20 so as to engage the engaging portion 27b of the cartridge holder 27 by forming an opening in the surface 21 or the like.

Claims (62)

A disk rotating means for mounting and rotating the disk, A traverse base for holding the disk rotating means; A damper member for elastically holding the traverse base; An apparatus body for holding the traverse base through the damper member; A tray to mount a cartridge containing a disk, Drive means for bringing in or taking out the tray to access or space the disk of the cartridge to the disk rotating means; And a traverse base holding member which is moved up and down with respect to the apparatus main body by driving means at the time of loading or unloading of the tray, The traverse base is elastically held to the traverse base holding member through a damper member, The damper member applies a preload in a direction parallel to the surface of the traverse base, And the cartridge is supported by the device body through the tray. delete delete The disk apparatus according to claim 1, wherein the resonant frequency of the damper member in the radial direction of the disk and the rotation axis direction of the loaded state is set higher than the highest rotational frequency of the disk. 2. The positioning member according to claim 1, wherein the positioning member for positioning the cartridge is inserted into a positioning hole formed in the cartridge while the tray on which the cartridge is mounted is carried in the apparatus body by the driving means. And a cartridge pressurizing member for urging said cartridge to said tray in a direction orthogonal to the disk recording surface of said disk in a state where said cartridge is positioned by a determining member. 2. The positioning member according to claim 1, wherein the positioning member for positioning the cartridge is inserted into a positioning hole formed in the cartridge while the tray on which the cartridge is mounted is carried in the apparatus body by the driving means. State detecting means for detecting a state detecting hole of the cartridge indicating the state of the cartridge and the inside of the cartridge, the disc clamp member for clamping the disc to the disc rotating means, and the positioning member. And a cartridge pressurizing member for urging said cartridge to said tray in a direction orthogonal to the disk recording surface of said disk in the state where said cartridge is positioned. 7. The disk apparatus according to claim 5 or 6, wherein the disk apparatus has lifting means for approaching the disk with disk rotating means for mounting and rotating the disk, wherein the cartridge pressing member is driven by the lifting means. Disk device. 7. The cartridge pressing member according to claim 5 or 6, wherein the cartridge pressurizing member pressurizes the tray in a direction orthogonal to the conveying direction after the single disk is loaded into the apparatus body and when the cartridge is not in the tray. Disk device. 7. The disk apparatus according to claim 5 or 6, wherein the cartridge pressurizing member is provided with at least one pair symmetrically with respect to the conveyance direction of the cartridge, and presses the center position in the inner length direction of the cartridge. delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete 7. The cartridge according to any one of claims 1, 5 and 6, further comprising positioning means engageable or detachable from the positioning hole of the cartridge, wherein the positioning means is provided with the cartridge in the loading completion state of the tray. And a disk device coupled to the positioning hole of the disk. 2. The positioning apparatus according to claim 1, further comprising positioning means held in the apparatus body so as to be engaged or detached from the positioning holes of the cartridge, wherein the positioning means engages with the positioning holes of the cartridge in the loading completion state of the tray. And the apparatus main body holds the damper member and the driving means to hold the tray in such a way that the tray can be loaded in and out. 30. The disk apparatus according to claim 29, wherein the damper member is formed in the traverse holder, and the traverse holder is held in the apparatus body. 30. The disk apparatus according to claim 29, wherein said positioning means is engageable or detachable at two or more positioning holes and at least one position of said cartridge. 31. A disk apparatus according to claim 29 or 30, wherein said positioning means is held to be adjustable back and forth with respect to said apparatus body. delete delete delete delete delete delete delete delete delete delete delete delete delete 7. A cartridge holding means according to any one of claims 1, 5 and 6, further comprising a cartridge retaining means which detachably couples with the engaged portion formed in the cartridge to regulate the movement of the cartridge in and out of the tray relative to the tray. The disk device having a. 47. The disk apparatus according to claim 46, wherein the front end of the tray does not have a wall surface perpendicular to the cartridge mounting surface. delete 47. The cartridge holding means according to claim 46, wherein the cartridge holding means has a configuration that elastically engages the engaged portion of the cartridge, and the tray is provided with a stopper at an end in the carrying-in direction of the cartridge, and the stopper when the cartridge is mounted on the tray. And a mounting limit position of the cartridge regulated by the same position as that where the cartridge is engaged with the cartridge holding means. 47. The disk apparatus according to claim 46, wherein the cartridge holding means is provided in the tray so as to be immersed in the concave engaged portion of the cartridge. 47. The disk apparatus according to claim 46, wherein the engaging portion is located at both the left and right sides of an import or export direction axis passing through the center of the cartridge. 47. The disk apparatus according to claim 46, wherein the to-be-engaged portion is located on one or both of the left and right sides of an import or export direction axis passing through the center of the tray. 47. The disk apparatus according to claim 46, wherein the tray has a guide member for restricting the movement of the cartridge in the vertical direction with respect to the loading or unloading direction thereof. 47. The apparatus according to claim 46, wherein when the engaging portion of the cartridge holding means is coupled to the cartridge and is in a non-engaged state, the opening and the opening for loading and unloading the tray on the front of the apparatus main body so that the tray is not carried in the apparatus main body. A disk device characterized in that the cartridge holding means interferes. 47. The holding device according to claim 46, wherein the cartridge holding means has a rotating shaft pivoting on the tray in a direction perpendicular to the loading and unloading directions of the tray, and having a coupling portion axially supported on the rotating shaft and coupled to the engaged portion. And a preloading force in a direction in which the engaging portion of the cartridge holding member engages the engaging portion of the cartridge. 47. The cartridge holding means according to claim 46, wherein the cartridge holding means has an elastic member that elastically deforms in a direction perpendicular to the loading and unloading directions of the tray, and the tip of the elastic member is protrusion-shaped so as to be immersed in the recessed engaging portion of the cartridge. The disk device, characterized in that the plastic deformation, or the engaging member of the projection shape is integrally formed with the elastic member at the tip of the elastic member. The engaging portion of the cartridge holding means immersed in the concave engaging portion of the cartridge, wherein the engaging portion of the cartridge holding means rotates along the surface of the cartridge with a rotation axis perpendicular to the loading and unloading direction of the tray. A disk apparatus, characterized in that a cylindrical or spherical roller is provided. delete delete delete delete delete

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